This place is very central and has everything you need. However, at the time that we visited, there were a few issues which I hope the company can improve on.
I say company because it’s not run by ‘Daniel’ all the messages are automated and makes the experience feel very weird, as they didn’t fit our stay. We booked spontaneously in the morning, but it took 3 requests from us to get check-in instructions - which left us waiting around in the cold. The company also doesn’t answer their phone.
On checking-in -> the description says that you can leave your stuff in lockers downstairs. But don’t rely on this as it isn’t possible as (if they respond on time), the lockers are locked or full of cleaning stuff/you cannot use them.
Also a few things in the room were broken. The main light was broken (so it was dark), the bin was broken and the bed was broken -> so you always rolled into the middle. Also, the walls are very thin and you can hear the neighbour - we could hear the person in the room next to us snoring all night.
And on that note - this is more like a well equipped hotel, and not an apartment. Also, the water only lasts for one shower. Don’t wash the dishes if you want to shower after.
Finally - the listing is dishonest, but if you’re looking for an ok priced studio hotel in central Madrid for a short stay, it will be a good choice. Just don’t expect to have a good sleep, get clean, good communication or that everything will work well.