My girlfriend and I recently stayed at Margaret's Apartment 1 unit in Kapaa which was located perfectly in the middle of everything on Kauai. If you are visiting the island and visiting all the regions of the island to relax, explore, or hike, this stay will be the perfect "headquarters" for you. The farthest parts (Haena State Park in the North, and Waimea Canyon in the West) of the Kauai from this stay are about 90 minutes give or take by car which isn't bad considering the traffic on during the busy hours of the day. There's a Safeway and Big Save in the immediate vicinity that makes any quick grocery shopping easy. There's plenty of food spots nearby too if you don't want to venture out with a car (However, the food in all parts of the island are worth a try so don't constrict yourself to just Kapaa if you have a car).
The apartment complex itself is very convenient to any needs a week long traveler may need. Arnold is the on-site manager and is usually always around to tend to any questions or concerns you may have. There's a shed with many complimentary tools/ amenities which are accessible to visitors such as bikes, snorkel gear, boogie boards, beach chairs, and a shop vacuum. There's a parking area in the back of the complex as well so getting in and out of the complex is never an issue. Just be careful driving in and out since there are some local cats and chickens roaming the area too!
The apartment itself has all the essential needs as stated in the description of the stay (bed, bathroom, kitchen, eating area, AC, fans, heat, closet, safe, etc). We were provided complimentary apple bananas, granola, and coffee which was nice. In addition, there's a star fruit tree outside which bears fruit that you can pick from! Any other information that you would want to know will be given to you by Margaret through messaging and the in-depth guide she prepared! This stay will definitely be on our radar when we visit Kauai again.