I want some useful data. How long have you owned your ebike with no failure/warranty? (And which ebike MOTOR/battery did have failure/warranty?)

Avinox does allow for removable batteries but so far only Crestline has developed a bike to use that feature. 

Last ebike was integrated proprietary battery (2020 Sight VLT) which has since seen 3 revisions released all with different batteries! It's maddening to think the poor chap I sold the bike to will have a brick in the near future. I love that that Bosch and DJI are putting an end to this nonsense and not allowing proprietary batteries to be used with their motors.

I will not own another ebike without a quickly removable battery. (not even DJI with fast charge) It's nothing but downside for the consumer to make a wear and tear item hard to replace. Pair that with not being able to double your ride by swapping a spare battery at the truck and it makes the non-removable battery eebs really a different product entirely. Bike engineers have accomplished incredible things and I refuse to believe there's absolutely no way to design a removable battery that adds less than 1lb of weight. (look how light and strong your fork is!) The amount of people in PB comments that have been gaslit by the industry to believe it as an immutable fact that removable batteries (and frame storage) add so much weight is wild.

Once the Shimano battery in my Bullit is worn out I know exactly how it will be replaced, and that it will take 1 minute.

I've had my Rocky Mountain Altitude power play since late 2022/early 2023 and I've never had a problem with it crapping out even if the company may not be around for much longer lol. It's their own proprietary motor but so far it has done a good job, I hope it will last!

No problem here.  Two Levo SLs. Four years now. Wife and I only do about 1k miles per year,  but, per Strava, we climb average over 80k feet per year, each. 93k last year. 
Both bikes still going strong. Though one is due for a shock rebuild. 

Yes, but taking out battery never happens. Nobody takes the battery out to shuttle or ride at the bike park in the bike absolutely does not eat it. It’s suspension in cinematic. It’s fairly subpar and it doesn’t stand out in any category as far as ride quality or characteristics there’s a lot of other stuff on that frame that makes it an absolute piece of junk, like not being able to fit a water bottle on the small frame and on the medium frame at contacting the shock and sometimes the top tube. Bad cable routing incredibly stiff ride low quality bearings, and above all that absolute garbage headset that you can only buy from FSA makes this bike fairly low to mid tier in my opinion when the motor works, it’s incredible but beyond that it really is just an an average bike with some serious engineering defects

I disagree. But I ride trails where a long travel, slack, light, active suspension bike works best. Not many E bikes available that fit that. 
I love love love my transition Relay, and the Fazua 60. I’ve tested all the e bikes besides trek and specialized or Crestline. Not interested in any of those. 
The Fazua motor is the best when it works, better than the TQ60. But I’ve killed three motors, two replaced under warranty, one I bought used to fix my now out of warranty bike. Fazua is a pain to deal with, I recommend a very good bike shop to deal with. Pro bike supply Newport is the best. 
After Fazuas warranty best of luck, dealing with any Fazua problem. 
Also replaced a speed sensor and a battery in warranty. Battery was my fault, got too cold. Don’t let your E bike sit in freezing temps lol. So taking a battery out is very important if you travel and your bike is on a rack. (Or in the back of your sprinter, like mine) Plus charging in your car really only works if you can remove a battery. 

But power delivery, weight, looks, removable battery etc. it’s so good

Yeti 160e, 3 years, lots of use, no warranty in the Shimano.

I’ll prioritise suspension performance over motor every day, the motor only serves to get up.

I actually just put together a YouTube video compiling a bunch of eBike motor reliability data I came across: https://www.youtube.com/watch?v=xOZf0U1XsoE

 

The fact that the motor/battery is a closed black box is why I don't own an ebike. I can rebuild or repair any of my bike at low cost but with motor it's either impossible or very expensive. And I hate to fill a warranty form.

Is the ability to change a battery or charge it, or bleed brakes or change a der cable going to affect you? Maybe you should look into that? And perhaps even solve for that? 

Example: I ran out of battery, but I want to do more laps. Throw in another battery. Or plan on charging said battery. Let's call that "being prepared". 

While having a beer and hot wings, and talking jive with the bros. Because you prepared on that, too. 

Oh, the humanity!

To be totally honest, I'm utterly fucking toast long, long before I've chewed thru the 750wh on my Wild. 

So an easy swap out battery is low on my priority list.
Hell, even without the range extender, it's proven fine for a 2 day overnight ride (Old Ghost Rd).

I bought a Mondraker crafty post covid, 2021, it has that very popular ebike motor in it, rhymes with mosh...I just looked yesterday at the odometer, 2850 miles on it and I have not replaced or repaired anything on that bike as it pertains to the drive system. the battery also still holds a charge/range very well, but i've always practiced good battery etiquette with it. I did put SRAM maven brakes on it a year ago and I did put AXS on it when I got it. I am in the industry and was replacing bikes every 6 months, but that mondraker has been a ride or die bike. The Geo is perfect for me, it's surprisingly light for a full power 640wh battery ebike (45lbs) and I will be sad when it dies....its the perfect bike, I mean, I do kinda wish the battery was removable as I live in Colo. and on my wifes Decoy and my commuter bike, I bring those batteries into the laundry room during winter and keep them in there at 20% of less battery because that's what battery guru nerds have told me to do.

I mean yes if I ride in eco and do 5k+ ft I'm toast too, but still that's only 1 more lap and 2 more hours than I can do on my analog. I love ebikes but getting 1 more lap is just not worth it with the extra weight complexity and cost. I'm going to pick up a 2nd battery for my Bullit at some point and do 6-7k self shuttle days in 100% trail mode and be just as toast as 1 battery in eco.

I don't see battery capacity doubling any time soon to make 1 battery work for huge days. Even if it did double you'd then be able to have a big battery eeb down to around 40lbs. 40lb with swappable 600wh battery > 50lb with non-swappable 1200wh battery.

My goal with ebikes is to truly have a "full park day" experience without riding a shuttle or lift.

Spesh SL gen 1 - 5 years, probably near 2k - sold it with zero issues