This is probably the best airbnb listing I've been to and is totally worth it.
1. It is better than a hotel, really. Everything is accurately described on the listing. There is even an elevator that opens inside the place :)
2. Great location, near Placa de Catalunya which gives you easy access to everything.
3. Sem provided me with water, fruit, breakfast etc which was really nice.
4. The garden is beautiful and wifi works well.
5. Sem is really nice and quiet, doesn't bore you with too much talking and I basically never felt his presence unless if I needed information/help, which was great.
6. It was super easy to do laundry, and I needed it after two weeks of traveling.
7. I would say the water pressure in the shower could be a bit more sometimes but nothing very serious.
8. He provided extra linen just in case.