Will they shoot any ammo reliably?
Gotta agree here. I got rid of a 10/22 that was a monster jam-o-matic and bought a GSG-5. I have put about 1000 rounds through it with NO FTF's or FTE's except once when I used the magazine as a grip. Can't do that. I put a collapsable stock on it and now it is my son's rifle. They are pretty expensive for a .22 but it is still less than a dedicated AR - 22.I've got a GSG-5. Love it. It's currently got 1k + rounds thru it since it's last cleaning and it's been 100% for those 1k+ rounds. You won't get that kind of reliability out of a 10/22, lol.
Definitely the most fun .22lr plinker on the market. It's accuracy is on par with a 16" 10/22 as well.