My family of four spent 10 days in Juliana's place. We thought we'd suffer from a lack of AC but it turned out not to be a big deal. There's actually quite a bit of ventilation louvres around the place, and the fans plus vents make it ok.
The amenities are pretty sweet. Want to go to the beach? She's got bamboo mats, chairs, umbrellas, beach towels (!), boogie and surf boards, and sand castle tools for you.
Want to pedal a bit around Princeville? Maybe pickup something at Foodland you forgot before dinner? Juliana's got two bicycles and a bike lock. You're not taking a big long adventure on them, but I did run a few errands on them around Princeville.
How about snorkeling? She's got four sets of goggles and snorkels and three sets of fins for you to use.
The driveway is large, and so you can park two vehicles easily there.
We washed clothes a lot (sandy beaches!) and the washer and dryer worked great. There's also an enormous gym. My nephew used it to workout one afternoon and gave it high marks.
We cooked at least one large meal in the kitchen every day. It's a large island with room for lots of prep with a modern induction stove. You'll need to bring your own spices or buy them in the local store, but there's enough tools in the kitchen to really take advantage of the local fish and produce for amazing meals at home.
She has a large tv and several sonos units through the house. There's access to netflix and other services. I brought my own Amazon firestick which worked great and my family enjoyed watching movies in the evening when we weren't too tired from the adventures of the day.
I had some questions from time to time and Juliana and her assistant were both readily available via text message. I would happily stay in Juliana's place again if I was headed to Princeville to stay in Kauai.