Overall a great apartment. Location is great – very close to what Gràcia has to offer. Apartment was clean, nicely decorated, and well maintained. Furniture was comfortable. The street noise is quite loud if I'm honest, but the apartment is nice and quiet for sleeping (modern windows). Just a note that the patio isn't necessarily peaceful, but does offer a great view!
Check-in is a little cumbersome but the host provided decent details on how to retrieve the keys from a lockbox nearby. Heads up to other travelers, if you have some luggage and a couple of people, I would recommend going to the apartment directly, and then having another person retrieve the keys from the nearby apartment, as it's just a little awkward to get to the apartment if you navigate to the lockbox with all your belongings.