We had a great time staying at Marco' studio. Marco was very responsive, which made the booking process really smooth and easy. We enjoyed having breakfast and dinner on the very large Lanai. The complex is quiet and well maintained (just don't park under one of the trees that have some super sticky little flowers ;-) ). The location in Kihei was great as it made for fairly easy day trips to most parts of the island (but if that's not your thing, there is actually a lot to enjoy right there).
The recently bought mattress was indeed very comfortable, we slept very well! The sets of battery powered candles and nice lighting is a nice touch and made for a romantic atmosphere.
We would highly recommend the studio to any couple wanting to spend some sweet vacations in Maui (maybe less suitable for a family as this really is a studio).