I have stayed 10 nights at this place and left with mixed feelings.
Pros: Owner responds quickly, decent bed, even better shower
Cons: Wasn't really clean, quite a few long hairs all over the studio and top windows so dirty you couldn't even see through them. If you offer a place to cook you could at least provide basics like salt/pepper/olive oil.
Worst thing was by far the inability to sleep there. If you close the windows due to temperature and humidity, if you open them due to the insane amount of noise all night. From terraces, music so loud you felt the vibration in the windows, drunk people, security alarms of cars/shops going off every other hour and traffic till in the early morning public transport and construction/roadworks.
You are in a central location but do not expect to sleep more than 3 hours consecutively. If you appreciate your sleep, you'll be much better off on other locations.