The K-22s are excellent guns known for their accuracy. They are very good for new shooters to learn sight picture, trigger control, etc. They are also very satisfying for target shooters, plinkers, or small game hunters.
One thing to be aware of is that the K-22 may have tight cylinder chambers, which can make insertion and extraction difficult. The tight chambers are one reason it shoots so well. Generally, they will loosen up a bit with usage and cleaning. Certain kinds of ammo may be more or less problematic.