I didn't much care for Pinball FX upon its initial release. The three tables weren't so hot, and one of them felt like a rip-off of Black Knight, a classic table. Also, the ball physics don't feel right--everything feels a bit too bouncy.
The Street Fighter II Pinball FX table doesn't really do too much to change my opinion of the game. When you fire it up, it immediately starts blaring a kind-of-shoddy remix of the Street Fighter II main theme at you and it doesn't stop, regardless of what other sounds are happening around the table. There are a few ramps and features, like a set of drop targets that are meant to represent the car-breaking bonus round from the fighting game, and a little Akuma figurine that straddles one of the ramps. But aside from that and some dot-matrix displays and sound effects, the premise is a little thin.
Obviously, stretching premises too thin by putting them on pinball tables isn't exactly new, but I think I prefer the old Street Fighter II pinball that Gottlieb did with Capcom back in the early '90s. They should have just tried to license that.
If you're interested, you can snag the table for 200 Microsoft points. Of course, you'll also need to own Pinball FX, which is 800 points.