Don't jump big classes there, we found discovery big enough.
Surface isn't the best but could be worse.
Lots of light patches on the floor where sun shines through which can cause problems.
Basic jumps but they're good enough
Ok haven't jumped bigger than discovery (mainly unaffliated opens) but at my level never had prob with surface, it's psarda topped with rubber. Two interlinked indoor schools, warm cafe and heated seating area - no one minds if you switch the heaters on but out of politeness spectators sometimes sit there freezing! Jumps mixture of older heavy poles and newer lighter ones. Staff all friendly and helpfull (did my first BS there couple weeks ok and they politely explained rule difference between unaffliated/affliated etc without being patronising etc) concrete parking, feed shop etc. Personally reluctant to go anywhere else in winter as rather spoilt this being my local venue.
Wix is excellent. Personally, i think the surface is lovely. The jumps are'basic' yet still challenging. One down side is the prices of the classes; for one sj class its 8.50!