We had a fantastic stay in Barcelona.
Pol was very friendly and helpful and the check-in and check-out process was incredibly easy.
Apartment is in a great position and is close to almost everything we wanted to see and do in Barcelona - we didn't even need to use the public transport system at all because we could walk everywhere.
The apartment already had almost everything we needed (dishwashing liquid, laundry detergent pods, towels, etc.), so just bring your clothes and a toothbrush and you're good to go!