Summering: I purchased this product from Wal-Mart less than 60 days ago. Since then it has been used to carry school books and a laptop. Last week one of the wheels completely broke apart. It split into 3 pieces. I called Targus and they are happy to replace the wheels for you, but you have to pay to ship the entire bag back to them. On top of that, I was told it would take 3-4 weeks to get the bag back.
Summering: I love the material because it is not like that cheap material that will last you few months, it looks like it will last me about 5 years without severe damage. The only thing I did not like about it is that it is bulky. I barely put my 14'' laptop and 1'' binder in the bag and the bag expanded and it looked like i had put in alot of items from the outside. I could not put in my other items without it looking like I had 2/3 laptops in it with alot of folders.