3D prints on my SLS

Hi

We are building our own SLS 3d printer, and we want to share with you what we have printed so far:
(this printer is very good at moving and flexible parts)

more pictures on our FB page:
https://www.facebook.com/SinterIT

We have printed working spring, RC car size:

http://3dprintboard.com/attachment.p...tid=5497&stc=1

We also have working gears printed as one object:
(no assembly or gluing required)

https://www.youtube.com/watch?v=fMfpM5UZ1Ho

And our Flagship model, The Book
(pages are flexible, and you can write your notes inside:)

http://3dprintboard.com/attachment.p...tid=5499&stc=1

Tell me what do you think about those prints ?
Do you like it or should we print something else ?