I love H20 GNG, I used it all the time when I had just paint sealant on the car. By far the best LSP booster I've used. My car and most of my friends or family cars I take care of I have coated now, so doesn't get as much use as it used to. I like products like Gyeon wetcoat or Hydro Blue and would love to see an Adams offering like it, as I love the brand. The quickness of them can't be beat, couple sprays on the wheels and a blast of water and its done. It lasts maybe a little less H2O, but dont have to worry about getting in ever nook and cranny which can be annoying on some of my wheels. I prefer H2O on paint.
I usually sheet and blow dry my car, but would be nice option to be able to boost and dry in one step similar to H2O for coatings. I've used a few other products that can do that.
I thought wash and wax was more for Paint sealant or waxed cars, I got some recently in a mystery box, I'll have to give it a shot!
I agree Shane, an Adams nano style polisher should sell very well, I would love to buy one. Would round out their line up and as you said its versatility is awesome.