Great option in Koloa! The guest house seemed brand new. Beautifully designed and decorated. Very clean with tons of space. Large kitchen stocked with every utensil you could need. There is no AC so can get a little warm during the day but you'll be at the beach anyway, and with the windows open and fan on, we were comfortable sleeping. The outdoor shower was great for cleaning off after beach days or hiking, and also came in handy if we were in a rush and needed to shower at the same time to make a dinner reservation.
Location was close to restaurants, shopping and Poipu beach, so couldn't ask for much more. We drove most places, but if you had time you could walk or ride the bikes that they provide.
Had a small snafu when we were checking in but it was taken care of in minutes and then we were settled in the guest house in no time.
Highly recommend!