Heather is a very nice person and we were able to chat with her about the Fringe (Edinburgh festival). The check in and check out went smoothly.
The room was ok. It was high season and many things were already booked out, which justifies the high price of the room. Otherwise it would be a bit overpriced for what you get. It is an ok room with a tea maker (which we appreciated) and you're allowed to use the bathroom of the apartment.
The location is ok, but also not very central. You can easily walk to the center/old town, etc. but it takes at least 20 minutes to walk so the apartment is not right there.