Great location! We walked around every day until almost 11pm. There are several Metro stations nearby, Basilique de St-Denis being the cleanest and most convenient. Walking alongside the lively Sebastopol Ave. is fun both day and night. The Marais area to the east of the house is amazingly charming and safe for roaming around.
The place is very basic, but if your goal is to efficiently explore the amazing city within a budget, you will find this place a great value!