In reply to euan maharg:
The bouldering room at Robert Gordon's University is nice, but just a big room, mostly flat/overhang, a bit warm in summer, not much that is hard, and not changed very much. I think you would do all the routes you can in a single visit.
Transition extreme (near the beach in Aberdeen) has a larger boulder wall, a bit bigger (maybe twice the size?), some much steeper angles, change routes more often and has some harder stuff. I think you would do what you could in 1-2 visits.
Real rock may be nearer when it is in condition - luath stone has some nice rock, but it's not very big and has a bit of a walk in, but I thought cummingston was excellent, and primrose bay looks really good. There is lots of coastal bouldering to the south of Aberdeen, which is ok but not necessarily worth a big trip.
Good luck getting some climbing in .