I have a taurus pt 22 that is similar I got back years ago. It also worked for me. Others not so much I hear. I have killed ground squirrels at 3o yards witnessed although that was many years back with more practice and better eyes
10 shots is a good amount.
I use it mostly for training when a woman or older person can not rack a slide on a semi but wants to try one. Being able to insert a round in the chamber as easy as it is on these guns is a help to some.
While not my first choice I also would not feel unarmed if I had only my pt22 or a berretta 21 for that matter.