Seeing this house has been like a little therapy session for me. It's helped me resolve my loathing of slate floors that developed a few years ago in a 70's style brown brick house. It was quite a large house and it had acres of slate that had been sealed. It was dark, dingy and just looked bloody awful! Have hated the stuff ever since.
But this application above is a breath of fresh air. Soft, light and unsealed - the way natural stone should be. It has really made me change my "hate slate'' attitude.
The other part of the application of it here, is the continual flow of it, indoors and out. Perfect material for a clean, light, and casual surface.
Images from here