David's place was easy to get to and easy for both check-in and check-out. I didn't realize when I booked just how great the location is. The castle really towers above the apartment, and it's not just _a_ castle but perhaps the main attraction in all of Edinburgh; it's surrounded by tons of castle-themed gift shops, restaurants, and other attractions. The apartment is also just around the corner from Grassmarket, an old gathering place that itself has tons of great restaurants and shops (including a cat cafe!).
What really impressed me about David's place specifically were the small touches. He knew we had a young daughter coming, so he made sure to leave out some activity books with stickers, and the bookshelf had several children's books, once of which our daughter wanted us to read again and again. The kitchen was ready to go with tea, cereal, and even a few candy bars and other snacks that are Scottish specialities. Having just arrived on a jet, these details really made us feel live we'd arrived home in Edinburgh and weren't just in another anonymous apartment. The place was also clean and tidy, but not threadbare -- it struck a good balance, having some personality yet not making you feel like you were in somebody else's personal space (no toothbrushes in the bathroom and shirts in the closet, as in some other whole-house Airbnb rentals).
David also provided a welcome guide that helped us make some good choices in our limited time there; the Red Squirrel had great burgers! All in all a great experience.