Jimenez JA22 - Purchased new, and was fairly reliable out of the box, but after some 'fluff & buff' procedures it works flawlessly, and is one of the favorites for plinking. I can put in a full afternoon with a FTF rate only dependent on the ammo quality. The people at Jimenez are great to work with. I've ordered parts from them on two occassions (one time a firing pin and the other a replacement grip) and they didn't charge me either time, sent 2 firing pins, and a set of grips, and the parts were in my mailbox within 7 days. I've put over 3,000 rounds through this one, with no problems with the springs, etc. I had to replace the firing pin after I ground the original too short to fix an occasional extraction problem at the beginning.
Phoenix Arms HP22A - Got this one used, and it's another reliable plinker, but also took some work to get it running smoothly. Is a little more finicky than the Jimenez, but only slightly so. Still a fun gun to spend an afternoon plinking with, but requires a quick cleaning about halfway through the afternoon or it will begin to FTE. No experience with the customer service, as I haven't had to order any parts for it. Round count...I'm unsure of the previous owner, but it was heavily used by appearance, and I've now put an additional 1,000 rounds + through it.
I'd dare to say that at least half the people that down talk these little guns have never shot one and are only passing on what they've read or heard. The other half probably have, and took these guns out of the box roughness as a reason to give up on them. It's true that they can take some tinkering to get just right, but once you've done that they're fun and inexpensive plinkers. Now, most will say that you shouldn't have to do anything to a gun out of the box, and that's true, but you have to take into consideration the cost of these guns. If you don't mind putting in that time and effort, then they're worth the money IMO. If you're not, well, then don't mess with them because you won't like them!
Also, please note that I didn't say they're good SD guns