No experience with the electronic gizmos, but I'm considering trying them out this winter in our camper. Never had a mouse problem in it before, but we found evidence of an infiltration over the weekend and I've caught 2 of the little bastids so far.
I bought a couple cans of Great Stuff spray foam with a bittering agent that is supposed to be vermin resistant and sealed up every conceivable hole in and under that camper.
Good luck with your mouse problem, WyoCowboy. I'll be following this thread to see what the consensus is on the electronic repellers.
