I was under the impression that players at Pokerstars were better on average than other sites. TAGgier and tougher. Maybe I was wrong.
I played one table for an hour or so tonight and picked up 35BB in pretty quick time. A heater and a small sample admittedly, but the players seemed really quite bad. A couple of too aggressive (60/40 type) players, and a couple of loose/weak players (44/0 and too tight post flop).
Anyway, I've turned my $50 deposit into $120 so far and I will see how I go while finishing my deposit bonus. I probably won't stay while I have Rakeback elsewhere, but you never know.