I have check thru hard sized luggage, this is my first carry on. although Calvin Klein obviously not a luggage name I got a great price and it came just in time for a winter trip... weathered (pardon the pun) a touch down in snow, wheels and extending handle worked perfectly in sub zero temps... inside designers spent time on thoughtful pockets and straps, including a perfectly designed middle barrier which gives, most do not. I travel extensively and I definitely recommend this bag.
PS the built in lock is well designed..I though unnecessary at first, now I wish all my bags had this extra feature.