My wife has one that she bought in 2012 for a 6-week visit to France and UK (before we moved to France). It's light and has held up pretty well, but that's the best I can say about it. In particular she dislikes the zipped cover -- it has no structure, so it just flops around when open unlike one with an internal frame.
End result? We're heading on a trip next week and she's taking my Briggs & Riley rolling bag. A much more expensive bag, to be sure, but a very good one. Me? I'm taking a backpack.
Now, it's possible they've improved the design over the past few years, but that's been our biggest complaint about it.