The game had some issues near the beginning and they've been trying pretty hard to flog it since then. I don't know how successful it's been because I haven't played it in ages.
It was pretty good and popular enough to always find a game, then they made an update which added a couple of really stupid bugs (like people would just fly around lying down instead of walking). When they fixed it I think they added bots or something, and I could never find a game which wasn't completely full of bots. They ruined the game themselves IMO but it may well have got better since then in terms of player counts with the number of promotions.
It would be good if you had a group of people to play it with.
I have a guest pass if anyone wants it.
Looks like there are 4 servers up. One has 10 real people on it and no bots. One has 16/16 but I can't see the players on it, one has 19/20 and one or two of them are bots, and the other has all bots