I am a HUGE eBags fan, ever since I bought their packing cubes years ago. I also have the slim professional laptop backpack, so I bought the weekender to get more out of my carry on luggage. It's such a great bag! I love having my hands free when I travel. I do agree with those who say it could use some extra support in either the hips or chest, because it can get really heavy if you load it up too much. All of the compartments are very clever though, and they work perfectly with packing cubes. I was able to get through TSA no problem with this backpack and a rolling carry on. It fits in a normal overhead bin well, and under the seat if it's not too packed. I only had trouble in the smaller 1/aisle/2 seat plane, but the attendant just put it in his closet. Oh, and the straps on the side are great for packing it in and squeezing everything together! Used the front pocket for my ipad with no problems.