Jacob's place is in a great location to explore Edinburgh. It's within a couple of miles of the major sites and has very handy shops/bank/post office all within a couple of blocks. If walking to the major sites isn't your thing, I recommend getting an all-day bus pass -- there are many stops nearby and buses run frequently.
Jacob was a very responsive host and helped us get the heat on as we arrived just as the weather started to turn cold! The kitchen was well-equipped for my sibling and I to make simple meals, the sitting area was small but well-furnished, and we were easily able to wash clothes and use the large drying rack provided. My only suggestion is that (currently) the mattress is not super comfortable, so bringing extra cushioning (if you're able) would be helpful if you're a light sleeper.
We'd stay here again!