I love copper, and needed new kitty dishes. Buy two, get one, was also helpful, since I needed 8 of them (but got 9). My only complaint is that they're a bit awkward, being in two pieces. That makes the inner bowls easier to clean (along with the outer bowls, if/when they need to be), but it also means I spend time separating them, and putting them back together for filling, washing, etc. On the plus side, I see these lasting quite some time. Plus, they are quite pretty.
I bought these because my bowls are in open view and I wanted something a little nicer that matched, but I didn't want to spend a fortune. These are good because they have a nonskid bottom and the lightweight metal bowls lift out for easy filling and cleaning.