Som Nit Triomf is small hotel within a building that I think spans several floors.. not sure. It is clearly marked outside the building though. The room we stayed in was on the 4th floor (take the stairs if you want exercise or there is an elevator!) where the reception desk was. There is someone there at all times.
Our room was clean, simple. The bed was comfortable, showers hot, & it had an a/c & hearing unit. Which we didn’t need in February. Had everything we needed for a 3 day stay. It also has a small balcony which is nice.
The location is wonderful. We found it to be very walkable to the Arc de Triomf, Sagrada Família, Gothic Quarters, and Las Ramblas.