Here's my Dark Shadow Grey Metallic 2004 Mach1. Detailed by Mike Phillips of Meguiar's using NXT.
That was in May. I've applied one coat of NXT and one coat of NXT booster wax since. I do wipe the car down every day using Last Touch Detailing Spray from Meguiar's professional line. (Cheaper by the gallon!)
Meguiar's is far from "basic consumer stuff" as they have a full professional line of products.
I'm sticking with NXT. It shines, hides swirl marks and lasts.