Look for that post in the next week or so. Some may think there is no such thing as a stress-free trip, but i can tell you there is. As far as i can tell, this is the only part of the suitcase that makes a difference. With four rotating wheels, you can keep the suitcase upright removing most of the weight from your hand. You can simply push it along with you, in front of you or behind. You can also manuever through crowds much easier as you can direct the suitcase with just a turn of your hand. Honestly, i will never buy another suitcase without this feature. Go to the department store and put your purse or some weight in a suitcase and give it a try. Why carry all my bags when i could just check and worry about it when i land. Yes, i have to pull out my little baggie of liquids but no big deal. My biggest problem with packing is shoes. And always, always, always make sure you have one pair of shoes that are absolutely comfortable. Try to stay at your row or ahead of your row. Many, many people including myself do not like sitting on planes and want out as quickly as possible. And there is no way in hell they are going to step aside so you can walk the opposite direction of the exit, up the aisle to get your bags. People will not let you get back there if they are trying to get off. However, they may pass your bag up to you. But if your bag goes all the way back, give it up. You will be sitting there until the whole plane is unloaded. When you are on connecting flights and not familiar with airports, make sure you regularly check gate numbers. Starbucks for a coffee.