Ive got about 6 characters going (Engineer (my main), OP, and Medic on the rebel side/ Soldier, Medic, OP on the other). Last night, I got a nice chunk of solid lag free games in. The game rocks, it really does. Maybe thats just my opinion, but its refreshing to get a new take on FPS.
The "whether" it sticks depends on whether we can get a group together, because playing with pubs isnt cutting it right now. Im already having "Black Ops Domination" syndrome where Im leading the entire lobby in points, playing pretty damn good, helping everyone, politely pointing out what the enemy is doing, yet Im always on the team getting spanked like a bad child.
If you had a solid group, even classes among the team, and worked together.... this game could be what holds me over until Battefield 3. But barely anyone on the GAF Brink gamertag plays it, so between that and the network issues, getting any teams together so far has been impossible.
Overall, yes, Im enjoying it very much, but my frustration lies within I could be enjoying it even more, way more.