The apartment is fine however, it is not a loft, at least as defined in the U.S., rather it is a ground floor apartment. That said it, was great not to have to walk up 6 long flights of stairs as I did in my Paris Airbnb.
We enjoyed the location of the apartment very much. It is north of the old city and the more congested (and dirty) parts of Barcelona. It is also close to 2 metro lines, so you can get anywhere in the city quickly. The metro system in Barcelona is fantastic—efficient and easy to use. Buy the t10 tickets as it’s the cheapest way to go. I personally would not consider renting a car as the parking is horrendous in Barcelona as it is in most major cities.
Back to the apartment...The bed was comfortable although too small for our tall American bodies (6’4” and 5’11”). The fold out couch was really comfortable unlike most fold out couches. The long leather couch was also quite comfy for lounging.
The kitchen is basic, but has everything you need including a wine opener. Speaking of wine and alcohol in general, don’t miss the little tapas bar right across the street. The owner Jose serves great tapas and is quite kind and charming.