I highly recommend Sol's place!
It is a tiny but cozy room, exactly like you see in the photos. Everything has its place so you can accommodate things well. Bed, bedclothes, and towels are super comfortable. Sol is extremely welcoming and gentle, she will make you feel at home. The location is excellent - close to everything: shops, supermarkets, parks, subway, restaurants, bars, and laundry room. With public transportation, you reach relevant touristic sites in 15 min, but if you appreciate walking like me, 30-40 min, and you see a lot! Barcelona is one of the most walkable cities I've been to, I walked easily 2h every day ;) I peacefully shared the bathroom with Sol, she left me space for my things, the shower is very hot. You'll have access to a Frigobar and the microwave in the kitchen. Marques, the dog is the sweetest creature and super respectful, he won't interfere in anything if you don't want him to (for me it was a pleasure to interact with him! o/)
Definitely worth it!