Yeah I paid $30 for it awhile ago but not disappointed in it as most people are. BF2 as a whole isn't very great (mostly due to things like the server browser, and annoying ass l33t people with planes and armor the WHOLE time). So I like the infantry combat thats more in SF, and the maps Warlord and Ghost Town rock. The night maps are OK.. but yeah I agree the new unlocks are sweet. I pretty much bought it cause I was getting ub3r pwned when I started, mostly be the F2000. So I bought SF to unlock the F2000 and uber pwn them back.. then I guess they nerfed it, but its still a good weapon. I really hate how certain maps that the allied side like the SAS get way better weapons than the old Rebel ones.
I haven't unlocked the G36E yet but I get killed by it alot so it is next, teh SCAR-L is great too.
edit: I rarely use the zip-line, but the grappling hook fvcking owns!! In the city maps its very useful for getting a good vantage point on some capture areas.