My transom gets the dreaded exhaust build up easily. Frenzy would keep the transom clean for a good couple months before it didn't look as clean after washing. Late last summer I tried Leverage. The time to dirty looking transom was consideably less. But on the sides and top, both products seem to work about the same as far as shine and slickness. Leverage is so easy to apply, I'm using it on those 2 areas. I'm not sold on the 1 time a yr application of any product, but again, the ease of Leverage makes this a non issue. The 20 min to do mine with Leverage, I'll hit it a couple times this summer.
I read/hear about petrolium distilates, silicone and carnuba not being good for gel and Leverage containing neither, I look forward to using it this yr. (Last yr I started with Frenzy, then swapped in late summer)
You have to get over the rub it on with a pad concept like your traditional wax, or even Frenzy. Leverage is like windex, comes in a spray bottle. The hardest part is seeing where you been while appling. No color or drying wax film to go by.
Give it a try, you'll like it.
I gave mine a coat last week in prep for the summer, then threw the full cover back on. It slide back off.