Great location for a first Madrid visit. It’s at a walking distance from every major spot in Madrid center.
In terms of the check in and check out the host change the information last minute and told us to go pick up the keys at a local store nearby and we had to wait 45 min because the store wasn’t open on time. Then the host told us to wait( 1H30) for someone that would come open the door ( that someone never came).
The apartment is worth it in terms of price and location, but it would simply be appreciated for the next guess if the check-In and Check-out process is updated.