I've used Turtlewax's 'Wax it wet' for quite a while now. No particular reason, I was after a wet wax product, and it was the first one I saw, and the bottle has lasted until now.
Finally got around to purchasing and using AG's Aqua Wax at the weekend, so thought I'd give my opinion.
To be honest, I started this thread thinking I'd be giving a clear recommendation to go for the Aqua Wax, but the more I think about it, the more I can see space for both in my garage.
Firstly the Turtlewax.
It's incredibly easy to use. In fact, if you generally need to dry your car anyway to avoid watermarks (which is certainly the case where I live) it actually makes washing the car easier
. Once you've finished rinsing, simply spray this on top of the remaining water, and dry the car off with a chamois or microfibre cloth as usual. Except you don't need to get the car completely dry, just get rid of any droplets so there's a 'glaze' of this product left.
Avoid using the cloth which is covered in this on your windows though, as they'll dry with visible watermarks.
Now the Autoglym.
Much more effort involved on this one.
First point, the bottle tells you to part dry the car first. I think this is wrong, having experimented when using it on both my and Mrs Bazza's car. Seemed to work better when just leaving the rinse residue in place. Having run a cloth over my car to remove most of the water, putting the product on was hard work, as the cloth didn't glide over the surface.
Anyway, you use one cloth to put the product on, mixing it with the water left behind in much the same was as the Turtlewax.
There are two big differences:
1) It then dries to a glaze, which needs to be buffed off like any other wax or polish. This is where the extra effort is involved over the 'wipe and forget' Turtlewax.
2) It can be used on any surface except the windscreen, so you can polish all the windows up very quickly and easily too (it doesn't do quite as good a job on glass as proper glass polish though).
So, to my verdict.
As indicated, I think you could easily use both these products.
If you're doing a quick wash, then the Turtlewax will still impart a very nice shine, and will actually make your quick wash even quicker. The only ways to wash quicker than this are to either use an aquablade (which I know makes some of you lot feel faint!) or to not dry at all (not an option where I live. Car ends up looking worse than when you started).
If you've got a bit more time though, the AG Aqua Wax definitely gives a deeper and more impressive shine, and it allows you to impart that shine over the whole car, windows, rubbers and vinyl included. It also results in a completely dry car, unlike the Turtlewax, so I could see it being quite useful as a starting method to then go on and add a second layer of a traditional wax or sealer.
For that matter, while it might seem weird, since doing so would instantly remove the wax you'd just applied, the fact that it gets the car completely dry very quickly and easily means you could even use it pre-polish. There's nothing more annoying that having your polishing catch a slightly damp bit of bodywork and causing a wet smear of polish.