The apartment is just as in the pictures, it has everything you need for a short-mid stay. We were there fot a month and having the lidl market just besides was a life saver.
There were some problems with the hot water, but Eliana solved it really quickly, the great communication was key.
The checkin and checkout were seamless, we just needed an internet connection to call the hosts and they welcomed us remotely. Once inside the place we had access to the keys.
As for the location, you will need to use the public transport to go to the famous landmarks or you will have a 50 minutes walk to Plaza del Sol (it's more complicated going back, as the road is steep 😂), however we did it several times and enjoyed walking down the city.
We recommend the place for long stays, thank you Eliana & Diego for the hospitality