Just did mine at the weekend. Out of 10 I'd give it a 6 in terms of effort. The rollers were a pain, I had a collection, but the only ones we liked were Foam ones, but they accumulated so much copper weight they fell off the roller. My boat twin stepped hull with spray rails was a little awkward with lots of shapes, so the last 2 of 5 coats ended up being done with small foam (chemical resistant) rollers. We worked better as a team that way both doing the same job, and we just rotated. It took about 1 hour a coat all over for 2 of us, although one kit only went 3/4 round my boat.
First 3 coats looked awful, then next 2 smartened it up. It is very brown looking which I am not sure about, and I have a few little bumps to burnish but generally I am really pleased. Still a tad soft to touch today.