This house is as fantastic as the pictures imply - even better in some respects. We are a family of five with three very active boys (13, 11, and 8) and found it to be perfect for what we needed for an extended stay (we were in the house for 3 weeks).
1) House: great space. well decorated and soothing - surf/beach modern decor which suits us perfectly. the couch and living area overdelivered from us with a modern open layout and indoor/outdoor feel.
2) amenities: truly A+. the pool and hot tub are awesome. The pool is large enough to play for hours - we had many a marathon game of Marco Polo in it - and deep enough (~8 ft) to jump in the deep end safely for kids. The hot tub is also great once you get accustomed to turning the heat on in advance by about 20-30 minutes before you get in. The only slight issue we had was likely due to the time of our trip during the Tradewinds of springtime where the pool was a little cooler than comfortable on a few days.
3) Location: some people may have preferred an ocean view, but for us, the view out the backyard of Mauna Kea was magical. We had a solid 4 late afternoons with rainbows and multiple speech-stopping sunsets. You are a little close to the highway and can hear it on occasion if that is bothersome for you (didn't bother us). We also rented bikes and biked up and down Waikoloa Beach Drive numerous times which was great fun for all. It is a ~5 min drive or 20 min bike ride to the beach (A-bay), which was fine for us, but, of course, if you want to routinely walk to the beach then you need to rent something closer.
4) management: Noelani is great - super responsive and friendly. She and the owners have put together a guide book for the house that I wish could be mandated for all rentals - having stayed in dozens of VRBO and airbnb houses (and private rentals), theirs is among the best I've seen.
We had a great stay here and hope to be back!