Matt and Caroline are awesome hosts. Krista, their co-host, was always very helpful and responded quickly.
They have created an amazing eco-friendly house. If that's what you're looking for then you'll be blown away.
You may detect that there's a catch. The design decisions implicit in creating their house means that liveability takes a hit. Easy examples of this are a lack of a heat pump / air conditioner (relying on fan driven cooling we were instructed not to touch), lack of a microwave and single small TV in the lounge.
Although we were very impressed with what the owners have created, none of us enjoyed our stay at their house anywhere near as much as the other two AirBnB's we've stayed in over the last month. One of those AirBnB's was a substantially cheaper property.
As I said at the outset, if you're interested in trying out a well designed eco-house for your stay, I full heartedly recommend this AirBnB.