The hosting team are great and very easy to communicate with. Their service is super and they respond quickly and appropriately to any questions prior to and during the stay. Would definitely consider staying with them again.
The apartment itself was very clean and, if you want to stay near the beach and away from the noise of Barri Gothic and its surroundings, has a great location. It suffers some of the drawbacks that necessarily come with Barceloneta apartments: It has no elevator and the bathroom is on the small side. More importantly, the shower is extremely small even with Barcelona measures. Furthermore, the balcony is, again as in many Barceloneta apartments, small, and unfortunately it is completely occupied by the AC unit and thus effectively useless as a balcony.
In total: The hosts can definitely be recommended, and the apartment has both good and less good sides. Personally, a somewhat bigger shower and a usable balcony would have been preferred, and is possible to find even in Barceloneta.