Overall this lodging was very simple and basic but decent; the one stressor was that we did have one issue booking it. As a result, I would tentatively recommend this listing, but suggest you take a lot of care, because we didn't find the host very helpful with that issue.
Our stay: This apartment was nice and clean, adequate for our stay. The apartment complex is a reasonable location and has a decent pool/hot tub (though they close by 9pm in the evening which is a bummer). This is a studio apartment that is listed as having a kitchen, but that's a bit of a stretch; there were a couple induction burners and a very limited kitchenette setup, with only a single sink (like, the bathroom has no sink—just the one in the main room). The kitchenette, however, is well-stocked with basic items (can opener, spatula, one pot, two pans) that were useful. Another big benefit we didn't realize until after grocery shopping: the apartment complex has two gas grills at the pool available for anyone to use (propane provided). There's no A/C, which I was initially concerned about, but the fan in the room is great and was totally adequate for our stay (highs of around 85, lows of 75). One random note: I don't think there's laundry accessible to guests; I did send a message inquiring but it seems like it either didn't deliver though my app (the wifi was surprisingly poor and my TMobile phone doesn't get great service in Hawaii) or the host didn't see it. As far as lodging goes, I would expect this to be adequate for most people's brief stays in Kauai.
Booking issue: My partner initially booked this listing, thought we had made a mistake, and tried to cancel immediately (like, 1min after booking). But because we were slated to travel ~13 days later (within the 14 day window), the host would not cancel, even though the other part of the policy allows for 48hr cancellations. This was despite the record-breaking amount of tourism Hawaii is getting right now—we could hardly find any listings on Airbnb, and I'm sure those days would've re-booked in no time. This would have left us on the hook for $950 (only 50% refund)! We also reached out to Airbnb, who initially said they could not do anything. A very stressful situation! Thankfully we worked out our travel issue (a lost ID), but days later without asking us, Airbnb DID cancel our booking. More stress than we needed, but luckily I was able to re-book and we thankfully weren't stranded 10 days out from our flights with nowhere to stay (obviously this latter issue was Airbnb's fault, not the host).
I would give an overall rating of 3.5/5 given all of the above (rounded up to 4/5 stars on this review), which was overall adequate for our needs on this trip.