I have the Alfa Proj 2251 stainless .22/22 Magnum, 4 1/2" barrel version, bought used but like new on the E/E, and had it out yesterday for the first time (due to Covid caused range closures).
I put about 200 rounds of mixed manufacture long-rifle ammunition through it, and it ran flawlessly. I didn't shoot any 22 Magnum through it.
I found the single action trigger pull was clean-breaking and light enough for me. The double action pull was a little heavy, but it staged well with very predictable let-off, much like my Ruger GP-100. I found it to be as accurate as any of the revolvers I currently have, or have had.
As my daughter was also shooting it, I had the small rubber grips on it, but next time out I'll install the larger wooden grips which fit my hand better, and she can stick with her own 22.
Mine is a solid, well made revolver, and it's heft and balance suit me just fine.
If it is typical of the Alfa Proj stainless revolver products, I'd have no hesitation in buying a stainless 357 version if I was in the market for another 357.