I have one of the scandium .357s, a 3” model 360 Kit Gun. Nice and light. Accurate as far as I can tell. Recoil is high enough that it is a little difficult to shoot well. I had to square up the rear V notch sight. I couldn’t hit a thing with the V sight. Square notch is ok. I also switched grips to Pachmayr. They absorb and dampen recoil much better than the hard plastic grips it came with.
I think of it as a carry much, shoot little gun. I waited for the .38 version to be improved to .357 capability, but I plan on shooting mild .357 or .38 +P loads in it. I don’t know how the aluminum/scandium will react to stress, but aluminum doesn’t react to stress with an elastic region like steel, but even light loads cause plastic deformation. I conclude that shooting a lot of heavy loads is likely to cause frame stretching. Rather than getting the frame replaced, I will shoot sparingly with milder loads. I have steel frame guns for heavier shooting.