People spend mere seconds looking at websites before moving on. Time is of the essence!
If you don't grab their attention right away you've lost them. Even if you do manage to capture it, if you offend their sensibilities with misspellings and terrible grammar, they will be gone as quick as a wink.
It's just not worth the risk! Let me inspect your site, make note of all the corrections you need, and offer advice as to item placement and graphics changes, if I think it is necessary.