Anyone tried this out on their HT? Does it work as advertised?

http://rattailantenna.com/

I was thinking about buying one for my IC-T22A. I've replaced the stock
rubber duck w/ a Smiley SLD-2 12" 5/8 antenna, but want to see if I can
reach some more distant stations.

Thanks for the help!

Scott Drumm
N3XFD