These brakes have really only 3 competitors Shimano M820,Hope Tech3 v4 and Magura MT7. Which ones are best?

I have the Jaybrd Bluebud X and the Beats Wireless. Both have issues in my experience.
Both have issues with reception when you turn your head ,. They lose the connection with my iPhone 6 frequently. Jaybirds are better but the DreBeats are the worst in this regard.
The Jaybirds after 2 years of use only last 1 hr. thats it. Almost worthless to use anymore.
Buyer beware on the battery issue. They seem to go as advertised at start and degrade quickly over time.

All pretty basic and accurate. A couple of items need to be reconsidered.
1) I've used Gorilla tape and it is great stuff for sure. However it is pretty heavy and thick and it will break down. Removing the adhesive is a MFer especially on Carbon rims since you don't want to scrape those with anything sharp for fear of damaging the layup. So don't use it. I use Stans and/or Wheels Mfg tape which is very thin. I use a narrow Stan's for the first pass over the spoke holes then a wider layer of Stan's or Wheels tape that rolls up to the sidewall edge.
2) Instead of cutting the valve hole which can lead to a small leak if a cut goes too far I use an awl and heat it with a propane torch to melt a hole for the valve.
3) Tape selection is still the critical dilemma in these conversions and I have my system. There is still room for lots of improvement in this area. I still get blowouts from broken spokes when they occur. A more flexible and adaptable tape or strip that can be used on a variety of rims would be ideal.