Yeah, you have to use a bit of logic here. If you have 4 inches of mud on your car you need a hose. Croftgate is more of a detailers product in that it will bring your car back to life if its crummy looking. I use Mothers wash, then detailer spray, then spray wax for my every week thing and I have Croftgate hiding in the shadows for when I want the car to stand out at a show or what not.
No joke tho, the quick n slick is beyond amazing in my eyes. Its $40 for a 32oz bottle of it but you don't have to use much of it. The way I look at it is...a automatic wash is $10-$15, a spray touchless wash is $5-$10. That pretty much equals out to the expensive products in the long run if you wash your car every week like I do.