I also have a upro. I looked at the game tracker function and decided not to buy it. I like good ol' pencil and paper for that. I keep my score as well as fairways, greens, and putts. I used to keep up-and-downs as well, not sure why I stopped. I'll add them up when I add up my score after the round.
I use a Facebook app,
http://apps.facebook.com/sigolfnation/ to track my handicap and stats. I don't play consistently enough or with a club to use a USGA handicap, and this app tracks greens, fairways, and putts.
I have thought about using the "mark" feature on the upro to record distances for particular clubs throughout my round. I would use a spreadsheet to keep track of my yardages. I haven't started doing that yet.
Sometimes after a round, I'll mentally go over my round and give my shots a rating from 0-10. If I hit a good iron shot that wound up just off the fringe but I hit it the way I wanted, it would still get a good rating. If I got lucky and a tree spat my drive back into the fairway, it wouldn't get such a good rating. I don't track that, but I can look back and evaluate my performance. Usually it comes down to concentration and decision making for me.
-Roy