There is nothing wrong with the case per se, but I bought it to go under the seat and found that to be problematic.  I have a bad back and can not put a bag in the overhead compartment.  It did go under the seat with a lot of force used.  It was not over packed at all.  If you are purchasing for the purchase of underseat storage, it is a struggle for me, my hub was able to do it fairly easily but it took some effort on his part.  On the return flight with him we put it in the overhead.  When I flied alone, I fought with it and finally got it under there.  Luckily I board with need extra time/assistance so I had the time and room to fight it.