I have bought 3 of these (one of them for a co-worker) as this is such a great bargain.  Waterproof, easy to move, easy to use daily and on airplanes as they fit snugly into the bins.  So much fits into these totes.  Use not for just laptops but as a roller bag to take with you anywhere...school, trip, work.

The first tote lasted me 2 1/2 years as I use it daily at work and on trips.  The third one I bought for a co-worker who loves it.