Some very large file sizes there, I stopped counting after I hit 3mb… Gotta get that down for sure.
The text is a little hard to read (About Us page), but I don’t think anything other than a font change would help that. Maybe it’s because the paper background is a little too busy? I will say that when you use a paper background like that, it’s important that the text should break on the lines of the paper, otherwise it’s again more stuff for your eyes to fight with.
I don’ think there’s anything wrong with playful hand-drawn designs. In fact I think Kyle Steed does one hell of a job. I think this particular design does not appear professional but as if a child has created it. If you take a look at http://burton.com – they have a pretty cool hand-drawn looking design as well.
I agree with a lot of the points made, but my 2 cents is looking at this from a conversion perspective you should really show much images of the burgers themselves. Looking at illustrations of burgers doesn’t make me want to eat one. Looking at a well-taken photo of a mouth-watering juicy meaty burger DOES!!! Apart from the background image (of which I can only see the bun and the vegetables due to it’s positioning) there doesn’t appear to be any other clear burger images on the entire site – even in the menu section.