I loved staying at the Banyan Harbor.
The staff was so nice and helpful, the apartment was very clean, twice a week you get new sheets, towels and they clean the rooms. it's location is very central. 5 mins walk to the beach, 2 mins to the bus station, some shops and restaurants are also only 5 mins walking away. You even have access to a swimming pool and a tennis court. Car parking just in front.
The apartment has a huge kitchen with a big fridge and every kitchen device you could need. Even the couch, on which i slept, was very comfortable.
I definitely recommend Banyan Harbor and would love to stay there again if i visit Kauai a second time!