Bought this trolly to replace my old 2-wheeled fabric roller board to reduce the strain of pulling it and carrying it down the airplane aisle. Just got back from a business trip with the Delsey and am very pleased. It rolls easily in the terminal and plane. It holds a lot of clothes without looking bulky as many of the fabric ones can be when stuffed (which gets attention from carry-on size checkers). You can expand it if more capacity is needed.
I had some reservations before buying due to a review that indicated that it was not well suited (no pun intended) for living out of while at the hotel because of its book-like design. I was happy to see that it fit easily on the suitcase stands in hotel rooms when opened flat. You just have to place it on the stand like a book instead like a ….coffin I suppose.
The downside is that there is no external pocket to hold misc items such as receipts and spare change. I put those in my messenger bag now instead (which is usually sitting on the suitcase anyway). Oh, as it’s plastic it will show scratches more, but I don’t mind wear and tear showing…it just looks well traveled.
I have the same case in 29-in and in blue. For this carry-on size, I thought the Titanium looked better. Wished they made this in black for comparison.
Also bought the Samsonite Luggage Hyperspace Spinner 21.5 but returned it due to liking this Delsey better (looks better, looks bigger, and holds more without looking bulky).
Hope this helps someone.

We purchased the Delsey Hilium Aero 29″ Spinner Trolley first and then followed that purchase with this Carry-On Model. This luggage has all the right specifications and features to give you years of travel use. The hardshell is Polycarbonate so it is attractive but more importantly very durable and yet light weight. Each Luggage piece is Expandable so if you end up bringing home more than you left with you are all set. The TSA approved contemporary zipper lock is much better than having to mess with various purchased after market locks. The wheels glide effortlessly and the spinner design gives you a lot more options as to how to pull or push it along vs. the older two-wheel designs. The inside of this luggage is well appointed with various zippered covers and a pockets. The lift handles are quite comfortable and spring back flat against the hardshell case when you aren’t using them. I have travelled with a Tumi 20″ Carry-on for years, and this Carry-On is lighter, but actually holds more even when not expanded. We looked at way too many luggage choices and are very happy that we chose the Delsey Hilium Aero models.

Wife loved it. She used it as a carry on about 5 times without issue than she checked her luggage. After one trip through baggage handling the shell cracked. It must have either been thrown or had a bunch of weight on it but starting from the side handle a 8 inch crack to the corner. Now the fun part we only owned the case for 9 months and it has a 2 year warranty so i figure id try to contact the company. I wrote a nice e-mail through their contact us tab because there is no phone # to contact them I haven’t heard back. Apparently as per their website if you don’t register the suitcase they wont even speak to you. To make a long story short and confirmed by the airline this suitcase is not strong enough to be used as checked luggage