I carried a M-11 /Sig 228 for years and it went bang every time.
Very easy to maintain. Wasn't not ammo sensitive.
It should be smaller and easier to conceal than the Ruger.
If you can, go to a range and try both from concealment.
Ruger make a good pistol, just clunkier and heavier than it needs to be IMHO.
40 S&W is a a waste of gunpowder.