After 43 years of riding (8 out of 11) bikes with 8mm belt drive systems (Primo and BDL) is my first 11mm belt drive (bought an extra belt for a spare as well).
It's a nicely constructed assembly, easy fitment, and good quality. I wanted to go with this to compare the heftier belt/larger cogs to the 8mm systems used previously. Dennis Kirk's price was the best I found, and free shipping to top it off.
As an aside comment, belt drives should include an extra (thin) steel disc to save the softer clutch shell surface from galling over time. After having some clutch baskets refaced in the past, I've learned the extra steel works well to preserve the surface.
Looking forward to putting some time and miles on it to test the 11mm system, but so far it's a very nice assembly, excellent quality, and great price.