The market (Champion) is close by and a electronic store is across the street from the market for people who need a Europe adaptor (220v vs 120v in the USA) there’s also a laundry mat and pressing shop close buy no irons here!! Her apt is 15minute walk from le metro Porte de Clignancourt. Its safe and quiet for solo travelers. I’d strongly recommend the transit app Next stop pass found in the Apple store. :) She is really responsive to all inquires