We visited Maui in early September, and it was much hotter and more humid than we anticipated. If you know it will be hot when you're in Maui, I would strongly suggest you consider whether a place with no AC will work for you. Also, not sure whether this is a pro or con, but there are critters (lizards, centipedes, etc). Definitely outside, and occasionally inside. We weren't bothered because we think it's normal when you're in a tropical climate, but it could bother some people.
PROS:
Location - airport beach across the street is gorgeous and an easy <10 min walk. The grounds were quiet and beautiful to walk around in the mornings and evenings. Less than a 10 min drive to Lahaina.
Pools onsite - they were clean and convenient.
Kitchen/grill - we prepared breakfast every days and several dinners, and the kitchen had everything we needed.
Beach gear - the snorkels/chairs/towels/wagon to cart everything to the beach were awesome to have.
House - We thought the house / lanai were really nice - spacious, clean, and exactly as expected from the listing.
CONS:
Lack of AC/poor ventilation: Not having access to the home's AC was a major drag. There are ceiling fans in every room and floor fans, plus we had the windows open and yet the house was still super hot unless we were directly in front of the fan. Our trip would have been much more pleasant if there were AC in the house. I would stay here again, but only during cooler months.