I bought a B&R Domestic Spinner (4 wheel) about 7 months ago. Have taken it a lot of places since. After using a two wheel bag for many years I'm now sold on spinners. They put all the weight on the ground where it belongs, as opposed to your shoulder. The only place they kind of suck is on high pile carpeting or sloped surfaces (like a jet bridge)...in which case I just throw the bag on it's two main (larger) wheels and drag it behind me as I would a 2 wheel.

The weaknesses of the B&R bags are the wheels and the handle. They are not designed to handle more weight than what might be stuffed into the bag itself or maybe a reasonably loaded extra bag on top. Add a cooler and I could see the wheels or handle breaking. I have pointed out these faults to B&R but I'm not holding my breath until they fix it. Of course, if anything breaks B&R will repair it for free (allegedly...I've never used their repair service) so that might be worth it.

FYI, B&R does offer airline employees a 20% discount....but unlike in the recent past you *will* need a company ID to take advantage of the discount now because too many people were apparently caught lying to get the discount. All this means is if you are planning to buy B&R, do so after you're hired.