OGIOTerminal Wheeled Travel Suitcase (Gear Bag, Checked Luggage)

A little confusing from the reviews. Is it 29 " 28" 22" carry on, not a carry on ?

Is the "one size" the one that's bigger than the carry-on or is the "large one" the bigger one? I have the layover bag but I want the next one up!

Is the "one size" the one that's bigger than the carry-on or is the "large one" the bigger one? I have the layover bag but I want the next one up!

How high does the handle extend from the top of the bag? I carry a roller laptop bag on top of my roller bag to keep one hand free.