We have several of these for our rescue rabbits, since they're also a favorite at the shelter where I volunteer. They're quick to clean and the large size is thankfully too heavy for the rabbits to toss, but I've noticed that all of the stainless bowls have developed rust streaks over time. Since we bought them several years ago, I'm going to get new ones and chalk it up to wear and tear, but it's a bummer that we can't buy replacement trays and have to throw away the entire product.