I have a Charter Arms AR7 and it's a reliable gun. Later models from Survival arms have a bad rep. I think mostly folks don't understand the need to play with the magazines for feed reliability. The feed ramp is in the magazine and must be properly adjusted. Mine feeds and ejects 100 percent.
But, the Papoose has a better trigger. The AR7's is creepy and stiff. It's harder to shoot accurately. the AR7 shoots about 1" groups at 25 yards, the Papoose I fired would half that, great little gun for small game. In addition, it was a little heavier and easier to get stable than the AR7. I bought my AR7 as a "saddle bag gun" for my bike trips and it works fine, but I think the Papoose is a better gun for most folks. Like the M60, it shoots really well for an affordable .22. I'd jump all over the Papoose if I were you. It's a handy little package and in the little floating case it comes with, doesn't look like a firearm. I came across one of those Papoose floating cases at Walmart on the sale table once, picked it up for about eight bucks and that's what I keep my AR7 in.
These little take downs are just too handy and affordable not to own one.
I got crazy and pimped out my AR7 back before the Clinton magazine ban, 25 round stick mag, scope, telescoping stock, vented barrel shroud. LOL, real tacticool! I use the stock magazines with it, though, for most of when I use it. The gun makes a lot more sense left alone in the floating stock, but I just couldn't resist dressing it up since I don't need it to float, not into kayak/canoe hunting.
Here's my AR7. Mine works great and was about 100 bucks. The Papoose is definetly worth 100 bucks more IMHO, though. But, I kinda like it.