Our group of 4 adults found Heinz's apartment to be spacious, clean and centrally located, though cheaply and sparsely furnished. Expect only the very basics, including no more than 2 rolls of toilet paper no matter how long your stay, a kitchen devoid of seasoning and other staples, and no information about the neighborhood or local amenities which would have been helpful to us.
Other than approving my reservation request, Heinz was not involved in coordinating our stay as he seems to have outsourced this task to an apartment management company located in the same complex. This office was generally responsive although I had to reach out multiple times to get the full information required for our late check-in. They also handle repairs and other issues, of which we had several minor problems to report. These were addressed promptly but the fact that we had to catch and report them added hassle for us.