The apartment was modern and beautiful, and it included many amenities that we had not even thought of. Everything is extremely clean and well-kept. The view from the rooms and the balcony is very pretty, with two beautiful works of architecture on both sides of the block that are visible from the balcony. The block it's on itself is very nice, it is solely for walking and has little to no cars. There are lots of nice shops and restaurants. The metro is only two blocks away, and is pretty central, so it is very easy to connect to the rest of the city. I'd say that staying in this apartment was one of the reasons our vacation turned out so great!
Maria was an incredible host. She was waiting outside the apartment building when we arrived to greet us, even though we made it almost a half an hour late getting lost on the metro! She is a very relatable person, and was able to give us very great suggestions for restaurants and places to visit which turned out to be great experiences for us. If we come to Barcelona again (which we plan to), we will definitely stay in this apartment and not think twice about it!