I have a Briggs and Riley Sympatico Medium spinner hard polycase that is holding up well after 6 years. I think it is 26". Do not use it as much anymore -- I pack too much stuff and end up taking my Bric's 30" poly on most international trips -- but the Sympatico is still great when I do use it. My carry-on is B&R as well and in excellent shape after nearly a decade. B&R also still have several 2-wheel models.

Definitely stay away from Travelpro -- my family has gone through 3 soft cases in the past 2 years. Similar zipper issues. They have been good about replacing under warranty but then the replacements break quickly too. Have also have had issues with Delsey bags - both a soft and a poly. As of now my wife and kids have Samsonite bags -- though in our case larger 28 or 30 inch bags - mostly purchased from TJ Maxx. So far those seem to be holding up.