We were looking for a place for a family of four, and I had to book when I found a "Tiny House". My wife is a HGTV junkie and we've seen a lot of the Tiny House shows. It would have been a tight fit for 6, but still doable. The outside itself is really nice. We had dinner outside. The outdoor shower was interesting.
A word of advice for anyone travelling to Volcano - bring food. Grocery and restaurant options are very, very limited. Tiki Tiny has a complete kitchen.