I can’t remember when was the last time I used Garena but earlier today it changed that as when I visited our I-cafe I saw this guy playing Left 4 Dead 2 and he was using Garena. I ended up putting extra hours just to try the game.
Overall it was a good experience playing Left 4 Dead 2 Multiplayer on Garena. So, far I haven’t encountered problem while playing it for couple of hours.
If you haven’t tried Garena you can get the software here