We stayed in SmartFlux's apartment earlier in October, it's a lovely comfortably sized apartment located in Bastille and within walking distance of two separate metro lines, a host of shops, cafés and restaurants.
I don't think this area is as touristy as some others in the city so if you want less of a tourist experience this is a good choice.
The apartment itself is located in an older building, the stairs are a bit uneven so be careful, but there is a lift if you're not as steady on your feet. It was spotlessly clean has a decent sized bathroom with shower, small kitchenette with two ring hob and fridge. You sleep on a sofa bed that is surprisingly comfortable and generally as a base for exploring the city it was great!
Garre du Nord railway station is a 15 min walk away for Disneyland and the two metro stations can get you pretty much anywhere else in Paris you need to go with minimal changes.