After a couple of trips, I've pretty much narrowed down my thoughts to a couple of things.

At the top of the Osprey bag there is an outside pocket that is very handy. I would like to see an additional hidden pocket inside of it for things like passport and/or travel document storage. Just one extra closure to keep those important items from falling out when you are fishing through that pocket. I use that also for things like chargers (always be charging) that are needed in airports.

I think the biggest weakness to the Osprey bag is in it's documentation. I've read the documentation on the daypack a few times and it's still not clear exactly how it attaches. Also there are a few extra connection points and clips that I don't see documented as to what they are for. It's certainly not a weakness that would stop me from acquiring the bag.

The one other suggestion I would have is on the backpack straps. As I tighten them down, I end up with a lot of dangling strap. A piece of velcro or some quick way to manage that excess strap would be nice.

One final comment to the person that mentioned packing cubes. I agree! In the case of the Osprey Porter, these cubes really improve the packing experience!

Other than that I continue to be delighted with the bag, and have a whole new sense of freedom. With the move toward smaller regional planes, I can smile now while I walk past all the people that had to gate check their rollaboards.