I wish I could do 3.5 stars, it works with a few drawbacks
This does work on gel polish.  It does not work quickly.  You must first file off the shiny layer or it does not work at all.  Several coats need to be applied so it won't last long.  With all the drawbacks it is still more convenient than using acetone cotton balls wrapped in foil.  You can at least still use your hands.
Rating: 4 stars