This is the best carry on I've ever purchased. The size is just right if I don't expand it (honestly that's when I know I've packed too much for 1 week), and no one bats an eyelash at the size (except one airline rep at JFK who worked for China Southern who just lifted the bag and told me to check it). The colors are also unique so it's easily distinguishable; dark colors are better for travel as it can get dirty so easily. One part to improve is the telescoping handle - it feels a little rickety, but other than that I love this.