Glenn's flat is a gem! I spent a couple of nights here while visiting Edinburgh with a friend and my dog, and we all felt incredibly comfortable there. The place is really spacious and beautifully decorated, it feels like a proper home from home. It was also spotlessly clean, came with welcome snacks and a stocked tea and coffee/supplies cupboard - and Glenn was in touch often to make sure we had everything we needed. We also really liked Newington, and being able to walk to nice pubs and coffee shops and also in town.
If you're looking for a great place to stay in town, look no further! I definitely hope to be back soon.