Its fantastic, I have one. The geo is based upon a 140mm fork but I have had no issues climbing, it responds well to having power smashed through it and I’ve noticed no issues with ‘harshness’ whatsoever. It climbs up all the ‘black’ uphills I can get to and flys back down. I run it with a talas 110-140 fork, It seems fairly well balanced at 110mm.
Well worth a look if you want single speed capabilities, up to 140mm forks. It also comes with a handy headset that will take tapered (to suit the tapered frame) or a straight steerer.