A lot of people will say the Bunnings stuff works with the right prep ... but when you get down to it theirs didn't work properly with the Bunnings stuff either, it still only lasts a couple of years.
What you really need to use is the stuff that's really toxic to put down, so Bunnings most-likely won't have it.
I decided that for the sake of the $2k price-difference, I'd instead get someone else to kill themselves (they've got all the right respirators etc), and it's way harder to scratch & easier to clean-up than the Bunnings stuff is. For example you can drop a screwdriver on mine.
Only problem is colour, it's hard to get a crisp light battleship grey because UV always yellows it to some degree. I really like the finishes you can get with metallic flakes & the like too, but I was more worried about being able to see dropped screws etc (as well as not making the garage too dark) than appearance so didn't go that way (prolly costs more anyway).
The other problem ... it's apparently susceptible to concreters. Concreters can destroy it. We had some paving done in the back yard, they were mixing on the driveway & apparently got some of their Whatever on the exposed epoxy. So there's a thin strip in front of the garage door where the epoxy has lifted like 80's European-car clear-coat. By the time I worked out what the problem was it was too late to do anything much about it.
