I have the brown colcasac with white lining, so i don't see the shedding, but my girlfriend as a red applesac with blue lining, and months after she got it (plus lots of lint rolling) and it still sheds every time. When you open it up you see the lint around the keyboard.
They are extremely thinly padded (think of your typical fleece jacket, and just wrap a single layer of that around your macbook... not much protection).
So if you are putting it in a laptop bag that already had a padded safe area and you just want to get a little bit of extra protection from skratches and stuff, they look nice and seem to be pretty good quality.
Also, get the hemp colcasacs and NOT the applesacs. My girlfriend has the red burlap applesac and it is WAY less rugged than the hemp. The burlap stretches and doesn't hold it's shape well, so her 13" mbp already fits loosly, while my colcasac still fits quite snug.
The colcasac hemp canvas is way more heavy duty and durable than the flimsy and thin burlap.
