I have a 310 Night Guard which is the N Frame 10mm version. Mine is probably power wise the next step under your 357.
Your ammunition choice will be the key factor in how well you like it. With a mid range load like the old Police Load or a good mid range reload you will love it. Drop in some Full Throttle Hunting Loads, and it will be a hand full. Way past enjoyable for most of us.
I carry mine in a Lobo Enhanced Pancake.
I put a set of S&W replacement Boot Grips on mine for looks. Go direct to Altamont if you go that route, and for an extra $10 you can get S&W Medallions on the Altamont Boot Grips. The Super Rosewood looks pretty good. Wood will only work out for light loads.
GOOD POINTS:
Light Weight
Great Sights, Cylinder & Slide Extreme Duty Rear and XS 24/7 Front.
When you Concealed Carry it, it will feel like a revolver a size smaller. This is probably due to the light weight of the revolver which keeps it from moving around on the belt as much as a heavyer revolver.
Power wise you can select ammunition from Mild to Wild.
Good Barrel Length for Concealed Carry.
BAD POINTS:
New price is a little too expensive, probably what killed the line of Night Guards.
If the price is right which to me would be $700 or less, it would not be a bad revolver to own.
If you reload, you will like it even better. If you don't reload I would check Buffalo Bores web site for a good Mid Range Defensive load. If he does not list one, you might e-mail him and ask about a load friendly for an airweight 41 magnum snub.
Bob
