I had a great time staying at Olga and Lina’s place. They were very quick and responsive when it came to replying since I had a little trouble finding their place the first time I got there. Where they live is in the Gràcia neighborhood, which is full of locals, so if you want to feel like you are a part of Barcelona their place is perfect for you. Also tourist spots like Park Guell and La Sagrada are only a bus ride away, which makes sight seeing a breeze. They have a very clean and tidy house and it would make sense for you to follow their house rules. I had no problems whatsoever with this. The room could get hot sometimes as there is no AC but this was remedied by the big window that stayed open all night to let the cool breeze in. I would definitely recommend their place to any solo traveler in need of a place to stay.