I was able to demo one, all day, from Outspokin bicycle when they had their grand opening. Got in 24 miles at Balm and felt like I could've kept riding all day -- the rest of the crew was done. It blew through the ups and down of Abyss so easily I had to brake to turn at the top of climbs. It's slack geometry gave me so much more confidence on Ridgeline, it was a blast.
I only have two critiques. 1. The dropper seatpost handlebar lever requires a lot of pressure, ended up using my palm instead of my thumb to press it. 2. Carving the tight turns in the quadrants required me to slow down more than I'm used to, and getting the 29-inch wheels back up to speed is noticeably more work than on a 26-er.
Overall, I loved the bike and think it's a great value. I'd buy one, but there are a few other bikes I feel compelled to demo before pulling the trigger.