Everyone knows there are 100s of ceramic coatings to pick from, making lots of claims, some false unfortunately. It's confusing
I relied on the exhaustive and fairly scientific testing of a youtube professional detailer (Scott HD) who conducted a careful 3 year test of nearly 100 coatings in all price ranges..
The longest lasting coating for under $75 was Nano Bond 9h Pro. Amazon for $35. It could easily last even longer, but that wasn't tested. (Scott has dozens of tests, but the one to see is either 30 or 36 months)
It was not hard to apply, and actually after a quick polish with Nufinish, I applied the Nano Bond in about an hour! Result is a perfect finish, smooth as glass! Yeah, I'll work an hour for $1400 any day.
Only suggestion is the applicator is lousy and the tinly felt cloth keeps falling off, but other than that, it's all good!