Bastille is great location to stay in Paris.
The apartment is good quin bad is very comfortable,sofa-bed not so much but my tow boys didn't mind sleeping well on it.
We enjoyed the stay very much.
We walked almost all over Paris using the metro from Bastille. We had wife issue in weekend but on Monday it was fixed by technician.
Over all it was great trip for me and my family, we even managed to see Tosca opera on last day of are stay without pkaning, cause This appartmant is so close to Bastille Opera.