This tiny house on wheels ticked many boxes on my list of small space living essentials. The only thing missing is a permanent bed for the grown-ups. I wouldn't want to have a bed and sofa that has to be converted twice every day, and that also is in the middle of the house traffic. The kitchen and bathroom had everything needed. The children's spaces were large enough and can be transformed in many ways. I like the white walls and ceilings, as well as the high ceiling in the kitchen area.
I like their thinking about the garden. It should be made for outside life as much of the year as possible.
They said at the beginning of the video that the house is almost zero energy, meaning that it takes virtually nothing more than the people living there to heat it.
Of course, there are things I would change if I built a small house, but as a whole, I think they come close to perfect.