2180 came in handy for me when I needed some protection on new paint. Last November when my car was 3 weeks out of the body shop and a major winter storm was on the way I applied 3 coats to provide some protection from the inevitable salt, etc. This car is a daily driver and is not garaged, so I made the decision to trust FK1's claim that it's safe to use within a few days of a repaint.
When I did my spring polishing a couple of months ago with my Metabo, the paint had hardened enough that it was surprisingly difficult to correct minor marring, but I take that as a good sign since the major risk of waxing/sealing too early is that the paint will never finish properly curing and never reach full hardness. I had to wind up giving the paint a good, determined workover with the Metabo on about 1500 with a light cutting pad and IP.
I don't consider 2180 to have a great appearance, I view it as more of a "utility" sealant. It doesn't even fit into what I would consider a true LSP, at least by my standards. Other than what I used it for on new paint, I'd only consider it as a base coat under some other LSP.
***If anyone else decides to use 2180 on fresh paint, realize I could easily be totally off base with my judgement and you're taking your own risk. It just happened to work out well enough for me to satisfy me. BTW the paint used on my car was Sikkens, which only claims 30 days to cure anyway. I still prefer to give it 3 months if possible.
One more thing. I think it does layer mostly because of the way it applies. The first layer goes on like the paint is a hungry sponge, requiring a LOT of product and not gliding well at all. The second coat is a little better, but still challenging. The third coat went on nice and smooth, very easy and thin.