Excellent experience. First, Prem offered to pick me up at the airport, which is no small feat. I already had a rental car, and as I got to the property, he was there waiting outside. He brought me in, showed me around, and we chatted for a good 10-15 minutes about things to do in and around the area.
The house itself is, as described, big. I traveled solo, but the 3 bedrooms could sleep 6 people. The kitchen was pretty well stocked (I cooked 1-2 meals per day). Nice BBQ on the deck too. The location is good; nice supermarkets and restaurants within 10-15 minutes, 20-25 from downtown Wellington. (Side note: If you need a workout facility during your time, I highly recommend Les Mills in Lower Hutt). Not sure how it would be without a car, though.
All in all, a great experience. Super friendly, responsive, and engaging host, and a nice spot to go with it.