The VT18 is extremely versatile, as I pointed out. Perhaps more so than those other pure luggage bags (see my review in the review section on OBOW). I mean the other bags have no organizer panel for example. They clearly look like clothes carrying bags. They are too big to use as a briefcase. The compartments aren't practical for files and only a little more so for laptops. The VT18 can work as a personal item in the cabin with all your goodies incl. laptop and files but also some clothes. This makes it an ideal overnight bag. The extended Tumi 26141 would do that, too, though. The Tumi will look more like an office bag. The VT18 will be more like a personal bag or a piece of luggage but can still pass muster in a business setting. It's the very simple layout that makes it so versatile.

It can fit an Eagle Creek 15" folder for shirts. The one I currently own is an 18" model. It will fit in width but not in height. The big difference with the other bags is that all the other bags will be able to take a suit with the suit still looking good, after it comes out of the bag. The VT18 is just too small for that.

I have test packed it and I can get the following in there.

Smaller main compartment:
Folder with three dress shirts and three t-shirts. Possibly a pair of jeans. If you are really careful you can forgo the folder but it just is more practical.

Bigger main compartment:
A pair of shoes filled with socks would fill less than a third of the available space unless you wear size 14. So I can still roll up a pair of pants and a sweater. A 311 bag and second 1quart toiletry bag (for brush, razor etc) will easily fit. There is still room in this compartment for another sweater, a rain shell or four rolled t-shirts. Perhaps even another pair of less bulky shoes. It's very roomy and 5.5 inches deep. Every bag needs at least one deep compartment, me thinks.

Flat full height front compartment:
This gets the laptop. A 15.4" fits easily. I have no 17" to test. A 15.4 would fit even with a sleeve on it. Or put more files. Or a scarf for cushioning the laptop.

Front pocket:
This has the organizer panel and will thus get the usual office stuff plus power supply and in-flight baggie.

Flat zippered rear pocket:
This can get a bunch of manila folders or brochures or magazines and such.

In other words, it has a bit less room than those other bags but if you don't need to pack a suit and if it's not a terribly long trip (7+ days), the Valoroso will be just fine. PLUS you can use it as your office or gym bag on site without looking strange because you are carrying a suitcase size and suitcase looking bag.

Love it!

Till