The location of the apartment is very nice, right in front of the Barcelonetta metro station. Thought you can reach many places walking, e.g. it takes about 30 minutes to walk to the Pl. Catalunia or 10 minutes to la Ramblas.

The apartment itself is the new, cozy, relatively small and light enough, although windows are on the northern side so that sun is never inside the apartment which could be good for summer. The apartment has central ventilation that can work for heating or cooling, 100L water boiler that is normally enough for taking long shower by two persons. There are two single beds that can be placed together and a sofa in the living room that can be transformed into double bed.
As it wasn't a tourist trip for me I used apartment for working and I found it quite comfortable for that, the internet is fast enough (Download: 25Mbit/s, Upload: 5Mbit/s, Ping: 30-50ms).
The view from all the windows is to the other building that is in 200 metres away, the apartment is quiet because of this (it's located near the huge road and if the windows were on that side you'd have great view, but noise).

PS the host met us with the bottle of very nice wine.