Clean, comfortable, cute, and convenient. The only other thing to make note of, is the mirror in the bathroom... It's not easy to use when trying to get ready in the morning. I used a mirror I brought with me for better lighting & to avoid having to strain over the bathroom mirror. But not a deal breaker.
Just be aware that even though I know the listing for the main house says there can be people staying in the carriage house, they can still be really disruptive... They woke us up in the middle of the night a few times.