I bought my brother one for Christmas a couple of years ago. It's a great little gun if you don't try to make it something it's not.
Comparing it to a Single Six is unfair, in my opinion. It's apples to oranges, the RR is not meant to be that kind of gun.
Just remember, when you pull the trigger, the bullets come out going very, very fast. So make sure to keep the weapon pointing away from you.