No it's not at all durable. It's super easy to get a decent cosmetic result if you're looking for a matte finish, but enamel it ain't
Prep is simple, just sand and spray... you don't want to take it down to bare metal, it adheres best to old paint ... it's also super easy to touch up when you get a chip, just sand and spray. But you will get chips.
Not totally clear to me how it differs from any other acrylic spray paint.
I'm kind of digging acrylic for art bikes, I'll be sticking with spray.bike for my next project, which will involve a lot of hand drawn graphics. It has its advantages there. For a single color, I dunno man. If the bike needs a lot of prep -- if you're even thinking about blasting, for example -- powdercoat isn't *that* much more expensive, looks fabulous and can take a beating
I hear what you're saying about the vids, but there really isn't that much to it... Here's some tips:
-- For prep, get some fine sandpaper, wet-sand those chips. Feather any paint edges, it doesn't need to look good, but it needs to be smooth to touch. I learned the hard way, their spray on "putty" doesn't make up for lack of prep... it's easy but not *that* easy
-- pay attention to recommended spray distance, they aren't kidding about that
-- polish with parchment paper about a half hour after spraying -- polish the crap out of it, it helps
-- let it cure before banging around with it, they aren't kidding about that either
-- if you make a mistake, don't sweat it... just wait 30 minutes, wet sand, and squirt it again
The paint is easy, just spray it... the clear coat requires a bit more care, but not much more. Wet sanding takes care of any goofups easily enough. The bike in the pic had three coats of clear, then three more with sanding in between ... I wasn't slathering it on tho, basically just used the whole can. It came out shiny-ish, I guess...
It was kinda cool that I could line the lugs relatively painlessly with an extra fine tip acrylic pen I got off Amazon ... that there's the advantage of acrylic in my mind ...