I agree, it is rather small (although this only shows part of the exhibit). It does, at least, provide some climbing oppurtunities for the cats although evidently not enough.
Indeed it looks too small , i have to say i prefer the Aspinall parks enclosures over this centres anyday , but im not going to be narrowminded like certain zoochatters and on my next visit to the united kingdom i will visit this place and judge it by what i see.