We had a great time at Greg's place. It is located only a few minutes away from the Waipio Valley which enabled us to check it at sunrise, hike up and down the slopes before coming back to the hostel to shower, rest and grab a bite. We were able to pick fresh avocados, breadfruits, tangerines, Macadamia nuts, etc. straight from the trees and eat them in the outdoor kitchen which was a great plus. The place was quiet, clean and homey. Wifi worked great too. We'll be back!