Thank you for your kind words. We worked very hard on getting it "just right" in terms of the balance of look and feel and pagespeed optimization, including the use of SPDY to benefit Chrome users.
As an aside the 4.000 images over 4,000 on the API pricing thing is temporarily confusing;
I'm guessing you're from the EU which is cool, but then pricing is in dollars. Anyway pretty sure it's an obvious mistake so no need for me to harp on.