It is good stuff, I bought some of the Quick Wax yesterday in Halfords as it was a bit cheaper than the detailer spray. I imagine it lasts similar to Aqua wax etc.
I think the one the Auto Fetish guy uses is a different line of products though? Called something like Meguiars Xpress Spray Wax (designed more for buying in bulk + trade use).
Yes I noticed he calls it Xpress spray wax too. It might be the same video or another one of his but there was one where he said he suspects they are the same product but who knows. I've seen the Xpress spray wax on clean your car. But the one I got was on offer so thought I'd give it a try.