Urban Trial Freestyle 2 makes a few improvements over the original, but it's not quite there in terms of network functionality.  The connection issues I kept having as well as needing to type in a code just to download a track made that a bit of a hassle, but at least you can now share your tracks online.  If you enjoyed the original game, you should enjoy the second outing with twice as many stages to dominate and more obstacles to trip up players with in the track builder.