Kendall's place in Kehaka was perfect in January. In fact, it was the only truly sunny part of our week-long stay (we stayed on the east side in Kapa'a as well). The house is a super charming plantation-style cottage. It is rustic in style, but all of the beds/furniture were very comfortable. The weather was perfect, with highs in the upper 70's(f), cooling off to a wonderful mid-60's at night.
As some guests have noted, the dogs across the street could be quite loud at times, competing with the local flock of chickens. However, we found that even with the windows open, the provided box fans were more than enough to enable a good night's rest. The outdoor seating area and shower were also quite special.
Make sure you check out Ishihara's market in Waimea for some great poke'. They also have VERY inexpensive but high quality local beef.