Thanks to each of you who responded to my post with your experiences at these resorts--I really appreciate the additional context and nuances your perspectives provide.

In response to bearbrick's follow-up questions:

We took the float plane each way, and am glad we did, but perhaps would have felt differently if (as one recent review on flyertalk notes) the bay would have been too rough to land there and we would have been diverted to Sumbawa for the boat service. We asked Kevin about the frequency of that possibility and apparently it certainly happens to some degree--I'm sure if you emailed Amanwana they could give you some sort of sense of how often the flight is diverted. The convenience of the float plane, and the slight thrill of it, made me glad that's the option we selected, even though the cost is higher. Folks with claustrophobia or a need for heavy duty air conditioning may not enjoy the float plane experience, but we really did.

I didn't have any discussion with the management about plans for renovation. The guest assistant who showed me to my tent and struggled with the hardware in it sort of laughed it off and said, "These furnishings are really old."

I just noticed there are some additional recent reviews of Amanwana on Trip Advisor, and despite our disdain for much that gets posted there, it sounds like some had the same concerns about rampant children and poor accommodation that I did. (I'll also upload my review to Trip Advisor shortly.)