Great location for a week-long trip on the island (the longest commute was to Waimea Canyon). Kapa'a and the Coconut Coast itself is a great spot to explore, and the super quick bike ride or walk to Kapa'a beach with its swimmable waves was just what we were looking for. Due to us just making the 14-day mandatory quarantine cut-off, we had our pick of the bikes for riding the bike path up the coast, which we did twice. Also a perk to have beach towels (which are in good condition and large) to take to the beach with us. Most condos don't offer a full kitchen, and we utilized our kitchen well on this trip to make a couple of dinners (try the Kauai shrimp like they suggest!); but do try and budget to support the local restaurants when you come as there are some great eats. Kenji Burger was a favorite. Being from Texas/Oklahoma, I can only vouch for Tiki Tacos as legitimate, but my standards are high. :)
The bed was comfortable, no complaints there. We used the AC unit and the tower fan at night to keep cool. Our allergies did act up while on the island/at the apt, but not sure if there's much to be done with the island humidity.
Having free access to the washers/dryers/detergent was also a huge perk!
Friendly hosts when we did bump into them. We also rented the kayak through Arnold to go on the river and that was super easy--which, however you take the river, it's a must!