has anyone ever tried this stuff..wondering if it works...

I have - worked OK for an older boat with sun damaged gel coat. Application is key, as you can see mistakes (similar to runs or brush marks in paint). Needs to be redone every 3 years or so. Certainly not as good as repainting or gelling, but lasted much better than buffing & waxing did on that old gel coat, and looked better than wax too IMO.

I have an unused kit at home I can sell for a good deal (sold boat before I recoated).

It's good for what it was designed for......last alternative/worst case.

It will make an old boat shine, but only consider it if there's not another alternative.

Once it's on it must be maintained religiously. If it starts to peel or if you have to remove.......

Good Luck on whatever you decide.

my boat is faded pretty good. I buffed it last year and waxed it and all the oxidation returned this year thats why i was thinking about the poliglow. Its either that or rebuffing and waxing the boat again i just dont want to go to far into the gel.

I used a like product called Vertglas.Looked Ok for a few years.I then need to have some areas painted .Was a bear to get off only with floor polish remover.It made all the gelcoat faded. Used Buffmagic and 3M polish , looks like new.Won't use the stuff again

Once it has faded you end up spending a lot of time and getting nowhere. I have a quick way to temporarily solve the problem. The product is called Penetrol, it is used in oil base paint to thin it just a litte and allow you to have a real nice final coat, without any brush drag. The produce is also used to polish up old fiberglass. It goes on with a rag, you leave it sit a while then buff it off by hand with a soft cloth. It is not the best, has some streaking, and will only last a season, but as a temporary shine it is quick and really looks great from a distance. Pick up a quart of it a home depot or your local paint dealer and give it a shot, you may be pleasantly surprised.
Brian