I was looking for a specific type of bag and this was great for what I needed.  There are times when on a trip you wished that you had just a little bit more room and I'm using this bag as an "as needed" extra bag for check-in.  I carry it in the front pocket of my suit bag and it fits there quite nicely until it is needed.  When that time comes (extra gifts to get home, or even if you just want to separate your dirty laundry after a long trip) I can pull it out and have an extra bag.  It really is quite large and roomy and is great for extra things -- although I'd have to say that I wouldn't want to push the airlines bag weight limits with this bag (not sure how it would fair under heavy loads).