We stayed her for 6 nights in Room 806, rented directly through owners Art and Sophie.
Absolutely fantastic condo with everything you need. View from the lanai is spectacular and I think this is probably why the Maui Kai is rated so highly.
There is a supermarket within walking distance which was useful as we didn't hire a car. There is a bus from the Maui Kai to Whalers Village (which I thought was fairly poor) and the other way going up to Napili Beacj (which is definately worth a trip up to).
One thing to note for other Britsh travellers is that Maui itself is very very expensive, so bear this in mind when budgetting your spending money!! Also, everything is pretty much closed by 10pm, people tend to eat early (around 6-7) which is unlike when going on holiday in Europe so just bear this in mind when planning your day.
We loved the tranquility that the Maui Kai provided, it was so quiet, all you can hear are the waves!