I got a 22A-1 (5.5 inch high-vis sight) beginning of this year. Almost 2000 rounds perfect now.
We used CCI Mini Mags for break in. Good to use a higher powered round until things break in on these .22s. We had no problem with those, and after a few hundred rounds it has feed and fired perfect with everything we have put in it (CCI Mini Mag, CCI std .22 LR, Federal Bulk pack, Federal Automatch, Winchester Super X...).
I am amazed with the accuracy. It is a target pistol, so it's to be expected, but I WISH I was as accurate with my Sig P226 as I am with this pistol (I'm not that good with either

, the sights seem to be a good part of this for me, almost 50 and eyes going fast).
I really like the high-vis sights. They are great from dimly lit indoor ranges to outdoors.
With the top rail mounted directly to the barrel, this is a great gun for optics. I like the high-vis sights too much to put any optics on this barrel, but plan to get another barrel and put some sort of optic on that. Has it been mentioned enough how quick the barrels are to change, and how easy to strip/clean it is.
I'm very glad I got mine, and would buy one again. I think it is a great value.