In reply to Lemony:
Despite the lack of features, you'll probably find it surprisingly enjoyable... maybe because the problems are intelligently set and don't consist of endlessly annoying 'wrong-handedness', with no massive reaches as a substitute for difficulty and no footholds positioned to exclude all but genetic high-steppers. This was today's pleasant conclusion, working through the grades up to Hard; (maybe things get quirkly once beyond that).
You don't actually need a skateboard or BMX to get in although I did feel very old in the queue. The toilets probably only get a one flush rating and the cafe, despite very comfy-looking settees, would tempt me more if the coffee came as a latte rather than an acrid stew.
Despite these minor carpings (I like my comforts), an excellent effort from City Bloc. I felt well tired (and satisfied rather than despondent) after an hour and a half... value for money, indeed.
Carl