At this place you will find all that you need in Barcelona.
First of all the apartment was like on photos: spacious, sunny, modern with everything you need, from beach umbrella to dryer and coffeemaker.
This place is beautifully situated - 7 walking minutes to metro station, 15 walking minutes to the beach (much better than Barcelonetta), 5 minutes to the mall (Glores) with huge supermarket where you can buy fresh fish, shrimps, jamon or fruit and vegetables.
I didn't see Violetta, at check-in we met woman who works on her. Nevertheless Violetta constantly contacted me via Whatsupp asking whether everything is ok and suggesting good places to visit.
Very close to this apartment you can find a Europcar office where we hired a car and drove to the Costa Brava. Appartment has a very good underground parking so you don't need to worry about safety.
So I can't really remember anything that wasn't excellent. Maybe one thing, this apartment is situated near firestation so once per several nights or more frequently (once a night) you can hear siren of a departing fire brigade. It didn't affect our stay or quality of our sleep.
In the end I can definitely recommend you this place to stay.