It's as advertised- room and bathroom are pretty small. Also, house rules were that we couldn't use the kitchen or shower outside the hours of 8 AM to 11 PM, so just a heads up.
Overall, the host is friendly and very communicative (usually responded within minutes), and the place is super clean, has everything you need, and is in an excellent location about a 10 min walk from La Sagrada Familia and right across the street from a metro station. Great value for a short stay in Barcelona.