i like my sherco very much. i like the torque of it, im going to get a kehin carb for it which should give me more top end power. the one weakness i have found on the sherco is the back shock! they still haven't sorted it as the gasgas, the gassers back shock absorbs everything and doesnt bottom out as much.
the turning on it is good easier to move bounce n move around than the gasgas. i feel the sherco grips more aswell, there is a different riding technique for the gassers.
maintence wise the sherco is alot better, easier to work with.
hope this helps scottdd