Smaller than the usual duffel, which perfect for me since all I need is storage for a change of clothes after I work out at the gym.  My only complaint (and why it only got 4 stars) is that it's made of vinyl or similar plastic textured to look cloth-like.  How long that will hold up is questionable - would be much better (and worth a few extra $) if it were canvas.

Update 10/15/2012-------------------

Almost a year later, and it's held up perfectly.  I've been using it constantly since then, and it appears my initial concerns about it's ability to hold up were unfounded.  Definitely recommended.