I suggest you take a look at the
Eagle Creek Swift 22.
It is lighter and the warranty cannot be beat. In case you are forced to check it for some reason, it has a ring hole to lock the zipper pull tabs to the bag(check photos on Eagle Creek site). If someone uses a ball point pen to open the zippers they cannot reseal the zippers by sliding the locked pull tabs. It seems to be selling at the list of $185 but Luggage OnLine has it a 10 hr sale of $148 at this time.
Eagle Creek has a great customer service. In the past I have asked a question that could not be answered and the service rep went and looked at a bag to get the answer.
As for the REI bag, look at the lowest rated review that mentions the actual sizing. In another thread it was indicated that most manufactures list the
interior dimensions.