I got one of these recently and I’ve really enjoyed it. Has run like a top, it fits the hand well, and I honestly like the trigger as well. I have a 22/45 I love as well and they feel very different, but I love them bothI have had good luck with standard Taurus TX-22. The are relatively inexpensive. They feel good in the hand. They are available with or without manual safety and with or without a threaded barrel. No malfunctions as of yet.
Good Luck !!!