Never heard of that particular one but general concensus is that they are a waste of money.
Also these treatments are normally applied by people that don't know how to wash a car properly let alone apply a full gaurd system.

I do not know of any product that will last anywhere near that long, the longest i have had a wax last is about 9months on my own daily driver and will be suprised of anything getting better than that.
Most will do 4-6months if applied correctly and maintained.

All in my opinion mate