It's not great
2011 Harley Davidson Street Glide
I had a stubby antenna on back of fender that I wanted to get rid of to have a clean look. I bought the power antenna to hide in the fairing. After installing it I tested it and found it doesn't work as good as the regular antenna that isn't powered. I dont think it being powered does much for reception.
Pros: Easy to hide
Cons: Not powerful and does not work as well as a regular antenna.