I play on this site pretty rarely, but did today for the first time in a while. Joined the FB page as well and I just do not find it fun to play on. Few things I have observed:
1) Any game I am playing on this site i have to leave my window up and not hide it. ACR, BOL, PS, BOVADA,
intertops all pop up automatically when my turn comes around. Consequently if not completely paying attention its easy to lose a hand or two on 64 spades because these tables do not jump to the front of your screen if you overlay another table or website over them. Consequently you can windup sitting out until you remember to look at the table. Consequently I do not take the games seriously on this site.
2) Breaks are not synched. Was in two Freerolls at the same time break started on one freeroll, and the second freeroll didn't break till the first one was over. Huge negative for me since i like to play on various sites at the same time and even ACR, PS(only play home games), Intertops, and BOL break at the same time (5 min before the hour), so I can take 5 minute bathroom break or whatever, regardless of which sites I am playing. While I knew 64S was not synched with other sites, I was really surprised to find out that two MTTS on the same site were not synced.
3) If you are in an MTT and look at the player list in the lobby you can't scroll down and see what anyone's rank is past 100 as all rankings of the 100+ are truncated so you have to count each player to figure out you current rank if you have not been knocked out yet.
anyway that has been my experience. Doesn't cost anything to play in a freeroll or two so that is cool. And they have a new game (for me), 5 card Omaha, which I have yet to see on any other US sites.