I like the size of this carrying/storage case. I am able to put my gps, power cord, mount, note cards, a sun screen and extension, and power cord adapter in the case. I was hoping to get my navi mat inside too but it is just to big in diameter. My only suggestion would be to redesign the interior zipper to go around the inside of the case's perimeter on three sides rather than through the center which makes loading the lower compartment more difficult. Otherwise, I am pleased with this purchase.