Where the UpLula really comes into play is loading 30+ round 9 MM magazines for either Glocks, or else 9 MM AR-15's. I have a Rock River Arms 9 MM AR-15, and the magazines are all but impossible to load to full capacity by hand. The last 5 rounds are very tight.
Not with the UpLula. They load in a snap. I've found the only people who don't speak highly of them, are people who have never used them. It's a product that sells itself once you use it, or let someone else. I found out about them at my club range, when a guy let me use his. I was so impressed I stopped on the way home at Cabela's and bought 2 of them.