I never liked big .22's, or full sized centerfires bored to .22. They get boring quick. I like my .22 SP101 4" but that's as big as I like for a .22
I have a MKI and a MKIV, they also feel perfect for .22 but I also lose interest after 100 rounds and usually end up picking cans or water bottles out of the garbage at the club to shoot. Punching paper with a .22 auto doesn't do much for me .
The Bearcat feels perfect for .22 because it's fun, feels good in my hand and kind of lives in between a "kit gun" , small plinker, carry gun, "throw in the range bag as a little piece to pop stuff with before packing up". I fired some Stingers through it and it felt like a .22 Mag
I feel like with a single action .22 I find myself being like "one more cylinder and it's time to go" and end up putting another 50 through it , or 50 more after that because I can't put it down.
The NAA is kind of a Ruger cousin, since they sort of share a bloodline and even they are inexplicably fun to see if you can hit anything with. They are very snappy with Stingers and fun to practice with. I even have a .22 Short NAA that's impossible not to have fun with. Too bad .22 Short costs more than 9mm