Feels about the same as BF1942 with a little more focus on the foot soldier. The physics on the vehicles are superb, and will often end up being your demise (ie. rolling/flying vehicles landing on top of you).
Word is that an SDK is in development and should be released within a month. If it allows allows addition of vehicles and player models (of which you can only select *one* in the current version), the community will be around for quite some time.
Word of warning: they don't have a good TK/ban system in place, and their cummulative penalty code is currently flawed, thus allowing TKers to respawn quickly.