Martin's place is further away from the city centre, but not far from the main transit lines. Martin was very responsive to our messages, and accommodating when we needed some shampoo. He was quick to provide this.
The only issue we ran into with the apartment was a lack of hot water on the last night of our stay, but to be fair, I wasn't sure if this was a building-wide issue. The building is undergoing extensive construction right now. In addition, the neighbour smokes. Although this isn't a fault of Martin's apartment, it does seep into the main hall in the apartment. This is only a word of caution to those who may be sensitive to the smell of cigarettes.
Otherwise, Martin's apartment has a convenient kitchenette, and plenty of space. He also provides maps, a portable wifi pocket, and wifi, which are great for new travellers.