I have tried them.
They work great, until they don't. AAA is a must have.
When they do work, they don't work any better than a fresh set of points and a good capacitor.
If my points become not-so-fresh while I am out on the road, I know that all I need to do is clean them up somewhat to get me home.

1952 5-window - return to "as built" condition | 1950 3100 with a 235 and a T-5 transmission