I had one a while ago (8-10-ish years ago IIRC) and it didn't fit wheels first in hardly any of our NB bins. The length worked theoretically, but the way it was shaped conflicted with the taper at the back of the bins.

Commuting or DHing, it caused a lot of grief and angst with FA's and just wasn't worth it and everytime it was on board it caused someone's bag to have to be checked that any other rollerboard wouldn't have. I gave it away to a SW friend. I otherwise liked the bag though.

Maybe the bins are all different now, but before I tried them again I'd want assurance that it fits wheels first in EVERY bin we have.