Very private room on the side of the apartment. It is a great set up not to be on the way of each others.
We stayed 3 nights.
We have barely seen the owners as we got up very late and went to bed late every night (jetlag from the US) but they were very nice, friendly, and totally accommodating with check in and check out.
The location of the apartment is just perfect and just for this, we would recommend. We walked 15-20kms per day (we enjoy walking), it is so easy to go around in Barcelona and the place is super central.
We paid $120/night with all fees which we found a little expensive for a room compared to a brand new entire 1 bed apartment in the center of Madrid for $90/night, but accomodation in Barcelona maybe more expensive so we probably cannot compare this way.
For reference we are a mixed couple from the US and France.