It's great for flying. It's also incredibly convenient at the security checkpoints. I use the dividers, and all the items that have to be inspected are very easy to take out and put in the tray.
While all those yuppies are fumbling with zippers, all I have to do is pop two latches, and everything is in there, perfectly visible if anyone needs to have a look. It will make getting through security far less troublesome.
Another important fact is that it fits anywhere. You won't have to worry about trying to shoehorn it in the compartment like all those other idiots.
There is plenty of room, as well. I travel very light, but I've packed it full once to see what I could get in there. I managed to fit:
3 pairs of jeans
3 T-shirts
3 rather large cotton Columbia outdooring shirts.
4 pairs of those Wigwam socks
4 pairs of skivvies
A Gearwrench compact tool kit
Toothpaste, a toothbrush, two different kinds of mouthwash, an electric razor, 2 in 1 shampoo, deodorant, medicine, and a bunch of other stuff I can't remember.
My leather jacket.
Some other odds and ends.
It's a tight fit, but not bad. I did travel with that setup. I found it amusing that I was allowed to carry the tool kit. A smart man with a few tools is more dangerous than a dumb-ass with a knife. That was the setup I used when I picked up the Jag. Interestingly enough, this side of some supercars, I've never seen a vehicle that couldn't hold one of these.
Just buy one. Pay the extra for the divider kit. Even for my trail tools, those dividers are wonderful. For travel, they work miracles, even if they do technically take up space.
The only reason someone wouldn't want one is the weight. It's got wheels, though, if that's your thing. I don't bother with the wheels, though. It's not that damn heavy.
If you travel a lot, you really, really ought to have one of these. Let others fuss about their pussy luggage while you take it easy everywhere you go.
Cheers,
Kennith