The Good: Competitive weight in Aluminum DH/Trail Bars
Bar width between the two offerings (Fatbar and Lite)
Several offering in heights (30 & 38 being the obvious choice)
Sweep / Rise allows for major earth raping
The Bad: Only one colorway, would prefer a black option
Bar Graphics (alignment)
I've had the opportunity to ride for a wonderful competitor of Renthal for two years prior to 2013 but didn't continue the relationship this year, because of that, I wanted to try a different offering and I decided I'd Renthalize.
In my time riding for the previous sponsor, I began to develop hand cramps between my thumb and forefinger and could never figure out what the problem was. I tried several different offerings of the company but always developed this pain. Speaking with colleagues, we hypothesized that it was the handlebar's sweep / rise causing the pain due to my hands' contact point in this area.
I wanted to try Renthal because of the flatter sweep, in hopes that it would spread out the weight distribution across my palm.
I've been running the Fatbars for a couple months now and can definitively say my hand pain has greatly diminished to a point of zero. I develop no hand pain or no arm pump which has increased the amount of my time on the bike during each run (be it trail or DH) as well as letting me maintain my aggressiveness throughout the ride.
I'd recommend Renthalization to anyone that asked me.