IMO the 22A is not of the same quality of the BM or Ruger, but when you consider the fact that it is much less expensive, it would not be a surprise. What was surprising to us is how well ours works. It is just as accurate and reliable as any of the rest of our .22 auto's, which include a MKIII Hunter, Buckmark, and a Neos. When you consider how low the cost is, it actually provides a lot of performance for the price.
One thing about the 22A is that it's grip is fairly large as compared to the others. One nice thing about it is that it's the easiest to strip of the four. Some red-dot sights will not mount on the scope rail, so if you get one, try out the fit before you buy.
I have used probably six or seven different types of ammo through ours, and the only one that it doesn't like is the extremely cheap Winchester Xpert bulk pack.