The apartment is exactly as it looks in the photos and the self checkin and checkout give you a lot of freedom. The kitchen is well equipped, the wash machine/dryer is a good differential, the shower is nice (even the hot water has good pressure, which is rare) and the internet is really fast and stable.
On the down side, it is too moist and has a lot of mould (at least on the first floor) and, as usual with apartments made exclusively for Airbnb, everything inside it is really cheap, so you have to take care to not break anything and you'll find that a lot of things are already broken.
The location is really good with the metro at less than 5 min away, the famous 28 Tram can be taken literally at the corner and there are lots of eating/drinking options around.
Communication with both Marias were really respectful and they helped with everything necessary, but it can be a bit complicated and take a while to get an answer, if you're not willing to keep contact from the means they prefer (outside of Airbnb), otherwise I guess it would be just fine.