We were really happy with the apartment for our stay in Barcelona. It is close to a metro station so it was easy to use as a base for exploring the city and beyond. We tended to walk a lot, with many of the city highlights being about half an hour away for us so you don't need to feel like public transport is a necessity.
The apartment itself is well presented with everything we needed (except a kettle, but this is a problem for the British and Irish only I think!), a good shower and air conditioning/ceiling fans for the hot evenings. It's at the top of four flights of stairs, so it's good to be mindful of that.
Our check-in was smooth, with Irene's father being there to show us around. We didn't need to get in touch much during the trip but when confirming the check-out procedure Irene was very prompt in replying to messages.