The apartment is in an excellent location within walking distance from Sol metro station. Be mindful that the nearby Gran Via Metro Station is closed at present.
There are some undesirable characters and drunks in the neighbourhood early in the morning.
Make sure you have access to internet in case of last minute change of check in plan and instructions by the host.
You may need to clean the kitchen appliances a bit yourself prior to using them.
Safer to book in summer time as you may need to have cold showers due to inefficient hot water system.