I love my 22A. I have owned it for several years, usually only used it to dispatch opossums. I mounted a red dot I had laying around on top of it this spring and probably put close to 2k rounds through it over the summer. I can hit groundhog sized targets at 100 yards easily.
Not saying open sights isn't as accurate, but the red dot makes it much quicker for me to get on target and stay there. Excellent little gun, although mine is picky and really likes to run clean and wet. I use Federal Bulk pack almost exclusively in my 22's. I've never had good luck with Winchester or Remington bulk, so my friends and I shoot nothing but Federal Bulk.