We were very happy with our choice of airbnb. Most of the things we wanted to do were closer to the south coast, so staying in Koloa made a lot of sense.
Robert's condo was exactly as described and perfectly clean. We found everything we needed while preparing meals and all appliances worked well. Salt, pepper and oil were in the kitchen. There were more than enough items to use on the beach (mats, umbrellas etc) and all were in good shape.
The balcony was not in direct sun during the afternoon which was nice, as it would've been pretty hot otherwise. As others had mentioned, we saw all of the resident turtles every day and liked to imagine they were greeting us when they'd pop up and wave.
We would definitely choose Robert's condo next time we come to Kauai.