Monica's place is in great location - near two metro stations and walking distance from Gran Via and many nice restaurants. The street is not the nicest one by looks, but very calm.
Communication was very good and nice, although there was a little misunderstanding on check-in time. Monica was also very helpful.
Noise from the street and the inner yard may be a little bothersome, but that is understandable in such central location. It might be good idea to take ear plugs with you to ensure good sleep.
The place was nicely decorated, but some visible worn-outs for example in the bathroom tiles. The equipments were good - nespresso machine, toast maker, air conditioning etc. all worked well.
Overall a good stay in very good location.