Edit: I've traveled with it and updated my review. Still 4.5/5 stars, only quibble is the zipper operation

Before I begin, Amazon has something screwy in the system. It says I'm writing this review for "Samsonite Luggage Dkx 2.0 Carry-On Wheeled Garment Bag, Black, 42 Inch", however this bag is carry-on sized. Not 42 inches. It's a mis-label that only shows up in some places.

Pre-review #2: Amazon customer service helped me out of a very tight spot with this order. Without getting into details, I can honestly vouch for the good-natured, extremely efficient customer service staff and policies.

The review: I first saw a carry-on sized wheeled garment bag while shopping at Men's Wearhouse. I know, I know. But regardless the merits or demerits for being there in the first place, it planted a seed. There is such a thing as a carry-on sized, wheeled garment bag.

I did due diligence research and decided to order this particular bag for my upcoming trip. Having traveled with it, I can say for sure that it holds up and is smaller than most carry-ons. I could put this bag in the overhead and easily put my jacket on top of the bag in each plane I flew.

Construction/Overall: The construction of the bag is rock solid. This is a hard shell case with soft sides-- more so than a traditional cloth carry on. The skeleton of the bag is very rigid. The bag will hold its shape and likely not expand too much. The bag differs from a traditional carry on in its rolling state because it essentially rests on its side while rolling, opposed to the vertically oriented traditional bag. The dimensions appear to be very similar to my traditional bag.

As a roller: 2 Rollerblade wheels, very quiet, very sturdy. The bag stands upright on its own due to 2 rubber-like bumpers opposite the wheels. The telescopic handle is as sturdy as they come, and extends to a significant length. The handle is not too bulky, so slipping a smaller laptop bag or similar trip bag over the handle for rolling will not be a problem. There is a very sturdy padded handle on top of the bag, as well as another more tight handle on the bottom for easy overhead retrieval.

Zipper Operation: The operation of the "pocket" zippers is hampered by the presentation cardboard (the one that describes the bag's features). Don't return or review the zippers until you remove those pesky plastic things. Once those were out, the zippers functioned as expected. The "clam shell" zippers start at the BOTTOM of the bag (in its rolling configuration) and zip upwards to the top. This is the default zipper orientation, although you could probably align them on one far side or the other. Going from "garment bag" to "rolling carry on" mode (closing the clam shell), re-zipping the bag is a bit more of a challenge than I expected due to the flexible zipper tracks on each side (the epaulets you can see in the picture). I need to lift the epaulet with one hand to free the zipper pull enough to re-zip the bag. Minor quibble.

As A Garment Bag: This is a suitable garment bag, but it is compact. The dual-zippered "dust cover" that can remain closed when in garment bag mode is high quality, but a crunchy sounding material-- no quiet operation in the early hours with others still asleep, sad to say. There is an "extendable" panel that may allow for a mid-length dress, or a tall suit, but that folds up towards the main body of the bag prior to the clam shell closing. I can probably fit 2 suits comfortably, 3 with a bit of effort. Plenty for a 5 day work trip for sure. The "shoulder compartments" are more compact than I've seen on my previous full size garment bag. Large enough to fit a smaller women's shoe, but not enough for my size 10's. Likewise, the compartments at the bottom of the garment bag are not big enough to comfortably house a pair of men's shoes either. As you may see from pictures, the contents of the garment bag drape over the middle "Seam" of the clam shell. So if your suit fits from top to bottom, the side view will appear as such: |__-__|. The middle will bulge upward. This is a weakness of this particular design, and will result in somewhat weird drape if you were to put a suit on straight from a trip in the bag. The bag comes with a detachable hangar which clips onto a "D" ring on top of the bag, so the bag can be hung in a closet in "garment bag" mode. There are 2 sets of elastic straps: 1 in the main garment bag compartment (goes across the "chest", and 1 on the backside of the extension (the mid leg) for longer garments.

Pockets: By my count: 1) Exterior flat storage compartment with a single zipper. Good for a file folder airline tickets, a single magazine, tablet, etc. 2) Exterior expandable compartment with a double zipper. Inside of this compartment is a webbed, zippered compartment, but no specific spots for pens, cell phone, etc. This is fine for laptops, sundries, etc. 3) Exterior ID card compartment (on the side with the expandable handle) 4 & 5) 2 small interior "shoulder" compartments, with webbing. 6) at the "foot" of the garment bag, a mid-size sundry compartment with clear plastic facing. Should keep most spills from reaching the clothing. 7) At the "foot" of the garment bag, a mid-size mesh compartment good for socks, underwear, t-shirts, etc. 8) a "not really a pocket" pocket, with Velcro closure, that allows access to the telescopic mechanics from the interior. You could, in a pinch, store socks or underwear without adding bulk to the bag. The sides of this compartment are zippered, however there are no zipper pulls. It's obviously not meant to be a regular method of access.

I am excited that this type of bag exists, that it's this high quality, and look forward to putting many miles on it. I'll update my review if future events warrant it.