The apartment: This place is just amazing! The apartment is spacious, inviting, and homely while the room was just as described, if not better!
The host: Euan wasn't around to greet me, but informed me his girlfriend would be at home to receive me. Margarita was such a delight to meet and we carried a wonderful conversation until Euan arrived, at which point Euan and I continued to chat. They're both so easy to talk to and before I know it, a couple hours had passed by and all the restaurants were closing down.
The area: it's a quiet, residential area, right next to a big park. I took a bus in from the airport, as Euan suggested, and it was a 5 minute walk from the bus stop to his place. There is a canal down the street, that runs into central Edinburgh. As someone who enjoys taking the sights in, I loved this walk (~1.5 mile walk to the city center), or else you can take the bus. There is a wonderful pub/restaurant (Caley Sample Room) that Euan and Margarita suggested , very close to the apartment. Great beers and quite lively. I wasn't able to try their food because their kitchen was closed, but there was a Chinese food place (Taste Good) that was quite decent.
Overall, this place was quite the hidden gem and I am so glad it was available and I was able to hole up here for my one night stay. I will most definitely be staying with Euan on my next trip to Edinburgh.