This is an amazing apartment. We (2 - a couple) stayed at this apartment for 20 days in early March. It was spotlessly clean and Alex was very accommodating of our check-in/check-out schedule. Included in our cost was a weekly cleaning and linen change which was really nice when you are staying for a few weeks.
The apartment is really well located in Barcelona. It’s up a few flights but there is a tiny elevator if you have luggage (we did) or if you find stairs difficult. All of the appliances (including a dishwasher, washer dryer, towel heater and heater) worked really well. The kitchen was well equipped with everything we needed. Alex provided us with a city map and restaurant suggestions as well as the location of food shops and pharmacies. He checked in with us by text from time to time to see if we needed anything. There were two bedrooms with ample storage space. The bed we used was very comfortable. We took a short side trip while we were there (a few nights in Bilbao) and returning to the apartment really felt like coming home. We would definitely stay here again.