I stayed at the apartment for nearly one week and it was great. There is nothing to complain about. Julia is a great host. She will give you advice, if you need it. But she will leave you on your own as well. Perfect.
The room is exactly as described. The apartment as well. One remark: DUMBO means Down Under the Manhattan Bridge Overpass - so you may here the Manhattan Bridge. Overall a 100 % recommendation from my side. I would do it again and I won't forget that holiday that soon!