When we got married we bought a Hi Standard (not Hi Point) 9 shot .22 short barrel revolver. It has a .22 long rifle and .22 magnum cylinder. No safety. Double action. The wife and I practiced with it quite a bit. I figured it was about as simple as you can get. Nothing to think about, no safety to remember, etc... and I felt comfortable with her having that if I had to be away.
I've had a couple of single action .22s over the years with interchangeable cylinders; but never seen one with double action. That must be a nice gun. (A .22 is my preferred gun for plinking, and I carry one all fall for shooting grouse while I'm working.)
I also didn't realise that they were still in business , but their base is down there in Texas.
I don't see any revolvers on their website though.