I'm not sure why this is, but when I first get to your site, i don't know what to look at.
My eyes are being dragged all over the place, and I had to concentrate to read a single heading/paragraph.
You'd think with the big lettering you've used, and the layout (which is good), this wouldn't be an issue.
The 'call to action' isn't clear enough. Could be that I'm just having a strange day, but it isn't exactly clear to me what I'm supposed to do (and yes, I see the (ready to begin/sign-up), but something about your overall layout/design just isn't sitting right with me.
Sorry, wish I could explain exactly why.