[IsaacAsimov]

I haven't played the NL 50 game on party yet. Only up to NL 25. I do however have a friend who plays party 50 NL and 100 NL and after I clear my bonus on FTP, I am most likely switching back to party. He says the people he plays against must not like their money.
I'd say it is definetly worth playing on party not only cause the games are good, but because the software is too. Traffic on the 50NL 6max tables is also decent. The software is relatively fast and has resizeable tables. Furthermore I think the customer support is less complicated than on UB and FTP. UB has been messing me around a lot lately. Took me 1 week before they let me start playing. There was a problem with the affiliate that I signed up with so I decided to cash out and go and play at FTP. Now they are basically holding back my bank roll (since 5 days or so) and say they are reviewing my case to protect me from fraud. I don't see why they should do this however, considering that I am cashing out to Neteller with the exact same details as my account with them. They sent me a mail saying that it is supsicious that I only played so little hands (I think 5kish). They are just being really complicated, depriving me of playing time.
All in all I think the games on party are less aggro than on UB and FTP. More loose passive fish.
My win rate has takenv a hit now that I started out on FTP and UB because I need to adjust to the aggro, it is good for my game though, so I am fine with cutting back a little bit on my winrate if I can improve my game.