This is totally cool in a public space. It would be a bit harder to carry off in a smaller residential space, but it makes me want to figure out how to.

Creative. I think you could always change out the ceiling tiles when you tired of it. Or change out the colors according to the seasons?
I can see this working well in a children's library or museum as well.

Sure, why not.

I love the idea of changing the tiles with the seasons!

I think the tiles are a bit much...to me the tree motif seems obvious from the concrete alone.
On a side note, St. John's University has very similar columns in their library (designed by Breuer), but on a much larger scale. http://lh6.ggpht.com/_wxfFvzT47Fs/RfI_Pedm4WI/AAAAAAAAAHM/TzHgLkORiu0/IMG_0018.JPG

Cool! Nice idea, but not overdone. Love the comment about changing tiles with the seasons. Very clever!!

Good for a public space, like a children's library.

A cafe near me has an even nicer version of the theme: lacy, hand-sculpted metal "branches" affixed to pillars. It looks amazing.

I think the idea is pretty neat. The colored tiles are a nice touch.

Incidentally, you just reminded me of my favorite old haunt back in Cleveland: http://cleveland.metromix.com/bars-and-clubs/photogallery/the-treehouse/627699/content

I can't tell whether the structure is made of wood or concrete, as ChristopherB suggested. I hope it's wood.
I think it's nice, great for a public space, difficult to apply to a private home... but maybe doable under certain circumstances.

Its gorgeous. It might get old in a private home, but in a public space its great fun.

The space is playful, fun and inviting. Perfect for a kids section of the library! Kudos to the designers.

Those sharp corners are an accident waiting to happen. Kids are going to try and play on that thing and get hurt.

Not in a house so much as a public building - nice!

i don't know that i'd like them in a house but i think they're awesome