My stay at Martini`s place was not just renting a room, I really felt like home. Martini is very open and easy going, our evening chats about everything helped to understand better how is it to live in Barcelona and feel a bit more like a local.
The room is pretty small but has everything you need: big wardrobe, shelfs to put your things, a small table, hairdryer and even a cover if you wanna go to the beach. The flat has amazing terrace with a view on Montjuic, and it is so great to chill there on a sunny day. Martini is obsessed with cleanliness, so no worries about anything being dirty. One issue - if you go to Barcelona in winter and sensitive to cold as I am, do not forget to bring warm socks and pijama as on cold rainy days it can be chilly in the apartment.
The location is great, the metro is just a few min walk from the apartment, and it takes literally 20-25 min from the door to Plaza Catalunya. Train station Sants is also nearby, very convenient to go to/ from airport and if you wanna visit small towns nearby. There are several grocery shops nearby if you are planning to eat home. I was coming back home late in the evening and at night several times, and I felt completely safe.
Overall, I would recommend the place both for short and longer stays.