We stayed a week in Edinburgh at this place and the experience - with a few hiccups - was quite, quite good.
The first thing you need to know about this place is that the location is in Haymarket, which is 2 tram stops from City Center, which I consider to be the Princes Street and St. Andrews Square stops. If you want to walk it, you can walk it, but in the interest of time, you take the tram. There's a taxi stand right outside, so when returning home through EDI, you literally walk out the door and taxis were waiting for you.
Haymarket, itself, is probably not where you'd spend your time in Edinburgh, but between going to the tram and going to Tesco, it had everything you need to visit the city comfortably.
Europeans will say this flat is on the 3rd floor because they count floors as 0, 1, 2, 3. Americans count the floors as G, 2, 3, and 4; so to me, this was a 4th floor flat. (embarrassingly, I spent a few minutes trying to open the downstairs neighbor's door.)
Check-in was easy. Jake sends impeccable instructions. There is no elevator, and the stairwell is a bit dark, so you're lugging your luggage up the steps. You won't want to stay here if you're handicapped or in poor cardio condition.
The flat itself was nice. The bathroom was elevated, meaning you go up a couple of steps to get to the toilet and bath/shower. The kitchen was fully stocked and everything was easy. Jake left towels, shampoo, bath gel, and toilet paper. Enough for a good stay, but if you're missing anything, there's a Tesco down the street.
We didn't make much use of the living room (because we were out all day), and at night, since there were no blinds in the room, people could see in if you had the lights on... so, we kind of stayed out of the room.
While the location is a great strength of this area, it is also a minor weakness. You can hear the tram and the traffic from the rooms. So if you're a light sleeper or have trouble falling asleep, the noise may bother you.
The hiccups in staying here could have been major, but due to Jake's attentiveness, the situation was handled expertly. The first hiccup in our reservation was that this property was not available on the day we arrived. Instead of hanging us out to dry, Jake arranged for us to stay at a different property and made sure that we got something equal or better.
The second hiccup was that the kitchen smoke detector was chirping through the first night because it was low on batteries... and while this kept us up, Jake fixed it the following day and made this a non-issue. We slept great the rest of the time.
On the balance, this was a great stay because of the property's location and because of the impeccable attentiveness and service of the host. In the end, the hiccups were a way for Jake to showcase his great hospitality.