Thanks for the honest feedback! I appreciate it a lot.

I'm commited to AJAX for the site, I think it can work great after many iterations and tunings. The site has over 50% of mobile traffic and tries to feel like a webapp on those devices. It has been very interesting to see that percentage grow.

Animations in CSS are pretty hard to get right, I see what you mean. I'm not a fan of the fade either. I didn't know about the shortcuts, I'll definitely look into that.

Cheers from Argentina!