AIO is one of the best "base" products I have ever used to apply a wax or sealant over.
As far as how long it lasts or if it is a good stand alone product, I can't say. It IS most certainly touted by Klasse as being a stand alone product with good durability.:nixweiss
Personally, I apply AIO about every 90 - 120 days. Platinum UPP goes over it on two vehicles, S100 on another, every 30 days. The AIO/UPP or AIO/S100 both look great and are so easy to use, it almost seems like you didn't work hard enough at it. Obviously, with my 30 intervals, longevity is not a major factor for me.
I do think you will be very happy with AIO, great product.
Charles:wavey