Darma's apartment in general is an excellent value in Barcelona. The location is great, buses and metro stops are near so you can get anywhere in the city with just one single ticket. The room was clean. She let us in before the check in time since we had an early flight. We had enough space in the fridge, never waited too long for the bathroom and there is a separated toilet for the guests. The communication was smooth too during our whole stay.
The street next to the apartment is pretty noisy whole day and night because of the traffic. If you have problems with falling asleep this can be an issue.
The room in which we slept in had a supersqueaky bunk bed which I didn't care about but my Mum couldn't fall asleep because of the noises from outside plus the bed.
In general it was a great place to stay, felt like home :)