Juan's place is really nice and tastefully done. We stayed there for 4 nights with our 4yr old. It is easily accessible by public transport and walking distance to a lot of the tourist attractions, while giving you ample local bars to explore as well. He sent us a welcome note, with some great recommendations and tips.
The apartment is a little smaller than the pics make it to be, it is cosy nonetheless.
The only thing that caught us off guard was that we had to sign some paperwork which is not mentioned in the listing. However, he does mention it in his welcome note.
Do note: if you're checking in later than the time mentioned in the listing or note please let him know, since he coordinates with a someone (for a fee, which he very kindly waived for us), to help you check in .