As someone who builds large dynamic e-storefronts for a living, I have a few criticisms of the CMW store...
1) When you click on an item in your cart it takes you to the store front page about half the time...
2) Why when you are on a listings page with space for 21 items does it only show twenty?
3) The search function is pretty minimal, most searches don't return useful information a lot of the time
4) Regular errors... just now I clicked the home page icon in the top right corner and got "No page found" error... reclicked and it went through...
Just my two cents worth... I could fix it for them, but would cost more than two cents though...
Don't get me wrong, they have a great operation, they are friendly, helpful, and carry some great products... but they could be better...