@CJW
I tried both of them, accuracy good, S&W was maybe a bit better.
I needed a 22lr, for cheap training, and I wanted the 22lr pistol to look like "Pistol". (not like modern bosch drilling battery machine, or the other typical 22lr pistol design, like luger-like)
ABove two were not for sale, my next choice was cadet kit, 22lr slide, mag and 22 barrel, adapter for CZ 75b.
Again, I tried cadet kit, from friend, many times, liked it, and at the moment not avialable anywhere to buy.
Available was Walther P22, but I found not too good reviews on internet, so I was sceptical. I passed.
Finally I ended up with SIG Mosquito, 5 inch BBL, 22lr. (looks like scaled down copy of sig 226)
Accuracy, moderate, but for training OK.
However, if not cleaned after use, next day will be FTF, FTE, and similar.
If cleaned after use, next day, works flawless, including cheap ammo
I am not too happy, but it serves the purpose for training, and warming up, before I switch to 9mm, for training, my mach pistol.