Victoria is a lovely woman. Even though she's "just" speaking Spanish and Russian, she made the communication very fluid and was always super responsive to the messages.
The district is for sure popular, but we've never felt unsafe, even when we came back during the night. It's a bit far from the center, but there is a bus stop just next to the flat which is bringing you there in 40 minutes and a tram in 20 minutes.
We came by car and we could park it down the flat for free without any problem (FYI it's a street carpark, not a private one). We had absolutely no issue with the car being parked overnight and during the day.
The flat in itself is very tidy and clean, as highlighted by the other comments. The bed is comfortable, the room got its own balcony and there is AC which is quite important during the hot summer nights.
I would definitely recommand the place, muchas gracias Victoria for the short staying!