We enjoyed our two-night stay at Linda's. Everything was as described. Putting all the food in the fridge, ants were no problem whatsoever for us and we only encountered a single roach. The 'bathroom' is completely in the open so be aware you might be sharing it with various animals :) Geckos in particular really like it there which isn't an issue thought. Most annoying are the mosquitoes. We had several bites just getting out of our car before even making it to the Ohana so be prepared for that. Once inside, the fly screens offered good protection. Bathroom breaks will have to be quick due to this issue :)
Also, bring some extra time if you want to cook. It takes a very long time to get anything going on the stove. Maybe time for mediation upstairs ;)