The flat was very nicely furnished and comfortable and was close to the Metro and lots of good bakeries. We had a lovely time with our infant daughter.
One factor to take into account if you're visiting with a baby: the flat is essentially two rooms, and if you use a travel cot / pack n' play, the bedroom is a bit of a tight squeeze. For us, that meant that our baby slept in the main room. It didn't affect our visit at all, but something to be aware of.