The location is perfect. Navigli is a fun area of Milan and it was great for my small family. We stayed in Brera last time and we love Navigli much more. The apartment is in the prime area of the neighborhood and you can walk to anywhere in Navigli without public transportation. The metro 2 line is one block away and was super convenient to and from Milano Centrale train station.
The apartment is not very big, but was good for two adults and one child. It was clean and the host provided some local favorite establishments. Supermarket is a few meter away and was nicely stocked.
This apartment isn't very modern, but provided the basic amenities and was centrally located. We had a great time.