The place is well-located. It's perfect if you want to explore Málaga by foot and experience its emerging artsy neighborhood.
As far as the room itself, it was not as clean as expected. Bedsheets had hair all over as well as the bathroom floor. Also, if you turn on the light in the bathroom, the fan makes a lot of noise all the time.
Regarding how well it was equipped, there was everything you would expect to have in a hostel room.
Also, there was a coffee machine and teas on the reception.
Flexible check-in and check-out: they left the key for us in a box and we left it there as well when checking out. So it is quite convenient if you don't want to plan the exact time of arrival/departure.