I feel like this about ipoker software too, it is the worst compared with other sites. It takes huge amount of RAM - like any other 10 running poker rooms in meanwhile I would say - even though there is no any "wow-it-is-awesome-and-I-have-never-seen-this-before-elsewhere" features or characteristics to be that greedy depending to PC requirements. If your PC is old or just not heaped-up, like mine, it's almost impossible to play at
william hill and let's say at 3 other poker rooms in the mean time (I'm a freeroller now). But without William, I can run even more rooms, have about 20 or more
freerolls' tables opened and a pair of NL2 tables etc., with HUD, and nothing will be stalling, everything will be just all right. When this software works, it can lost connection or close by itself for some reasons etc.
That's why I seldom play there. Just because of their soft.