I haven't had a problem with rusting with my microwave, BUT, I haven't used it much, and I can definitely see how it could happen b/c there is a lot of condensation inside after you cook something.
There are a couple things about this mike that are incredibly ANNOYING. First and foremost, the beep it makes when its done is damn near ear piercing! I don't know why it is so loud. I always had to watch the mike and stop it early so I wouldn't wake up my roommate! Not very convenient. Also, there is a fan that runs for a few min after it's done cooking, and I just find that annoying as well. Also, toast takes over 6 minutes! Ok if you're in a dorm, where they don't allow… Read more