Really nice place, the location is perfect, near to almost everything. If you need anything you can find it in the small stores near by the house. When you're getting close, it's the small alley on your right hand.
About the place, like I said, looks really nice but be aware that there's only a window in the front door. The basic things you need like kitchen, fridge, bathroom, heater, etc, does the job. Is Lisbon you will almost never be at home.
If you're staying for 2-4 days, is perfect.