I remember hearing the Team Blast glitch doesn't work on the PC version (I certainly haven't been able to get it to work on it, although it does work on my Gamecube version). Since that glitch was only recently re-allowed, I don't know how much benefit it really provides. The overall benefit of the Ultra Glide probably outweighs the Team Blast glitch, especially since you can't use the Team Blast glitch in the Team Dark charts.
Anecdotally, though, I think the PC version requires a decently fast computer to run it full speed. My computer was built in 2007, three years after the port was released, but I cannot get close to 60 fps on it even with the draw distance turned down--the music and voices run full speed but the graphics and actual gameplay lag horribly, regardless of whether it's fullscreen or windowed. It runs a bit better for me set at 30 fps, but still not quite full speed, so all the stats I've submitted have been done on the GC version. In fairness to the game, I should point out my computer is a laptop hardly intended for gaming.
One other thing you might want to bear in mind is that the PC version has a Free Camera option (like Sonic Adventure DX), which the console versions do not have. Most of the time the default camera angles are fine, but some of the new record videos using the Ultra Glide take advantage of the Free Camera to force the camera to follow the characters as you'd otherwise lose sight of them.