My family just spent an amazing week in Kailua-Kona. Dani and David's place was exactly what we were looking for. The ocean is literally 25 feet from the edge of the lanai. The sound of the waves was very soothing when spending time in the condo. We woke up one morning to see a pod of dolphins swimming right outside the window.
Everything was very clean on arrival and the unit had everything that we would need to use for a week in Hawaii. The beds were comfortable. The unit is furnished with things like boogie boards and coolers to use. The condo complex has four gas grills for use where we would run into the same familiar faces every evening around dinner time.
One of the things a future guest should be aware of is that the unit doesn't have air conditioning. We stayed 8 nights and there was only one night out of the eight where I would have used A/C if it was available. The unit did warm up considerably when using the oven too. One other thing to note is that the beaches around this area aren't really great. The local beaches in the area tend to be small and rocky. The nicest beaches on the Big Island are about 25 miles north of Kailua-Kona. We really enjoyed Hapuna beach.
To sum everything up. I would stay here again in a heartbeat.