We arrived past 8 PM at Marc's place. Communication with Marc was perfect. We coordinated our arrival time the day before and Marc was very accommodating in this regards. As soon as we arrived he walked us through the nice living area and private bathroom space and offered us beer and some rambutan he had bought. On top of this he has a wide variety of snorkelling gears and boards that you can borrow.
For the location, price, quality of the apartment and relative easy-going attitude of Marc, I would definitely head back to Kona at Marc's place and recommend anyone who is looking for a place to stay to simply book here.