In reply to C Witter:
Big depot. Reliable power-endurance routes, rarely cruxy, suited to training for sport climbing. Grading OK. Bouldering an afterthought. Lots of young wads and strong older people.
Depot Pudsey. Consistently engaging classic setting, low walls, focus on finger strength as problems get harder. Mixed friendly vibe. Older but good training facilities.
City Bloc. Good quality mixture of classic and 'competition' setting, most reliable in Leeds, regularly reset. Mixed friendly vibe. Good training facilities (kilter, spray, moon).
Lab. Big space but consistently poor setting, holds suffer from rosin polish from liquid chalk and rarely reset. Friendly but mostly full of beginners in rental shoes. Now has a gym (with nobody in it).
Last sun dance. Mostly gymnastic / comp setting (of a mixed bag). Suffers from hold polish. Mostly super edgy students - and has alcohol license so full of drunk non-climbers all weekend. Tendancy to have a 'dj' turned up so loud that the drinkers outside can party (but nobody inside can think let alone climb). Started good but now a victim of image. Good gym.
Honorary mention - Harrogate Wall. Short, often cruxy lead routes with quite soft (potentially erratic?) grading (7a Hgt = 6b+ big depot). Regularly reset but small bouldering. Friendly vibe. Don't eat at the restaurant they have food hygiene issues.
Post edited at 12:07