I'm from the US, so haven't played there for awhile. But, I liked their ease of deposit/withdrawal and of course their software. Being able to fold/call with my keyboard was nice.
For me Pokerstars has best software and great support. If we compare PS support and support 888 - on 888 I need to wait for an answer as many as three days, PokerStars response within 8-12 hours. Its huuuge diference.
Its full of regulars. Not long ago I saw a russian girl played 18 tables Omaha $0.02-005 there. PS is good for one thing, its the traffic but I never did cashout on PS.