This was a nice place. Big, with lots of light, and everything you need for a long stay. You're right in the middle of the nightlife and close to the Royal Mile, too.
The internet was slow, which is normal in the old town center, butit was just fast enough to stream video without hiccups most of the time. it does go out briefly at least once a day, though.
My only real complaint is that the apartment is really fantastically loud. There are partiers screaming and shouting right outside the front window until the early hours, which I expected. But the folks upstairs are also very loud - the night before I left, they spent two hours after midnight moving furniture around. It's an old building, so you can hear every footstep, and in places you can see through your own floorboards into the restaurant downstairs. That restaurant uses the courtyard behind the building like an extension of their kitchen, and will spend hours very early in the morning out there filling stainless steel trays with ice and fish, right outside the bedroom window, or dumping glass bottles into the dumpster. Between the drinkers out late and the restaurant up early, the noise is close to 24x7.