I have this one:
Leapers, Inc. - Hunting/Shooting, Sporting Goods and Security Gear
on my 15-22. I have been liking it a lot! Perhaps not the best, but I'm hitting clay pigeons (3") and 2" plastic balls at 100 yards with it on a bipod...
It's 4 MOA, so hitting a 3" clay means you're doing something right...
How long have you had that one? Does it feel like a cheap piece or decent quality?
I picked up the 15-22 in February, and selected this red-dot shortly thereafter (I used to be an iron sights only person). I've been to the range a dozen times since then, and shot 2500+ rounds through the 15-22. Since this was my first red-dot, I can't really compare.. But, then again, for <$50, it has held up for me. The only thing I *think* I wish this had was alternate reticles (like a cross-hair or circle+dot).
Bottom line, I've had it for 2 months, same battery, and it's still holding zero. Was shooting paint balls glued to golf tees at 50 yards with it.. Even the wife hits clays at 100 yds.
I keep telling my dad (who taught me with a bolt-action iron sights) that the red-dot feels like cheating... You only have to line up two items (dot+target), not three (rear, front, target). Since the red-dot has infinite parallax, you don't have to worry about your head position - what ever you see the red dot on, that's what you're going to hit... It also turned me into a two-eye shooter... Damn is that cool to have the sight just disappear altogether...
I did shoot an AR with an EOTech.. The circle+dot was nice, but it didn't significantly improve my shots. Given the cost differential....
I have no doubt that the Primary Arms and Bushnell TRS-25 are excellent red-dots that don't cost much more than this. Longer battery life, smaller MOA (I think both are 3 MOA). The PA and Bushnell have excellent reviews, to be sure, and I'm sure would handle fine. For me, though, other than the multi-reticle, I can't complain about the UTG at all. I'm not hunting with it either, but I've used it in bright sunlight and low light...
Anyhow, hope that helps..