I bought the large organizer. I travel four days out of each week. This has helped my life!! First of all, I can hang it up. It has a lot of separate compartments. I keep it packed all the time. I refill what is used. It even has a sleeve to put my prescription in. I love this product and have told my coworkers about it!
Due to luggage restrictions in air travel these days, I've purchased the smaller size to limit what I take with me, while still being organized. The one-size bigger organizer uses too much precious space in my travel bag. I think it will work great for this purpose.
I purchased this for my hubby who was getting deployed to make him a shower kit (the medium size) and he loves it. Makes a great gift for someone who is deployed. It fits everything. I then bought myself and my sons one, large for me (it fits my hairdryer!) and the small for them. This kit is great!