I am SO EXCITED for this bag.
Just this morning I was packing for an overnight trip in my L15, wishing I had a backpack that had the laptop compartment of my L15, and the external water bottle pocket of my S19. Of course, the panel of external pockets on the S19 means the main compartment is smaller than the L15's main compartment. And the L15 taught me I love an open main compartment in a travel bag, although I love the compartments on my S19 as a work bag...
Anyway, in my moment of goldilocks perfectionism, I went so far as to check out LL Bean to see if they had a bag that would meet all my desires and of course they did not, so I logged onto the forms to add something about an external water bottle pocket to the wish list and, lo, there's a post about a 22 liter bag with an external water bottle pocket and a laptop compartment! I don't have strong feelings about a clamshell opening, but can I just reiterate here how much I love an external water bottle pocket? I LOVE an external water bottle pocket, and Tom Bihn makes the only one that's in the MIDDLE of the bag, not just tacked onto the side to make it lopsided.
Basically, what I'm saying here is that an S22 could be the bag of my dreams for 1 or 2 night trips where my A30 is overkill.
Looking forward to pictures and reviews! (But I already know I'll be buying this bag no matter what they say.)