It sometimes has playable servers, it has a fanbase in the UK still I think.
What's weird is the developers are still updating it regularly.
I really liked it quite a bit too. But early on it did have some performance issues, especially connection wise (what doesn't?) and so its free weekend bombed. I got back into it one weekend randomly a bit before it really slowed down and the battles could be really awesome on full servers and people playing the roles.