Well, at first this game's idea impressed me a lot. But after playing it a bit here is what happens:
First part, technical and level design issues... Well, main idea of 100 players per instance is ruining the game big time. Match-making system in this game always got stuck because of player pool lacks the quantity of players in each rank cluster. I mean, it always ends up you versus top rank people. And if you insist getting "bounty" missions, you lose rank quickly. There is also lag as a major problem. Map is tiny and missions are boring as hell. BUT the worst problem is, game has no anti-cheat solution. Nearly half of the players cheat.
Second part, user interface... Needs a lot of work. Customization -that has a major role in this game- is like a little puzzle game with this user interface.
Third part, customer support... Bad support. While year is 2010 and other brands are dealing with millions of players without error, they should do similar.
Don't waste your time with this game.