I'm riding it, not too much because of work but I'm really enjoying it! I can't really find a difference between 26 and 27.5", maybe just a bit better on some technical uphill but I don't see great changes going down. I don't fell any flex like someone said but maybe I'm not pushing the bike enough
I know! I said you have good taste! I only had 1 hour ride on it so I can't really tell you much about it but for now : going uphill with the "pedal" position it seems like you're pedalling a cross country bike (but it also depends on the bike) and going downill it makes the rear always on the ground, it eats every little obstacles and (like the fork) is always in the first part of the travel, making he ride more comfortable..