I really love the soft microfiber feel and the padded straps.  It's so roomy, yet lightweight and packable.

BUT, the problem is with the strap placement.  It's not so much that they are short, but they are too close together at the bottom of the bag.  I am petite (5 ft, 115 lbs), and when putting this on, it feels tight across my back.  It's because the straps are too close together at the base.  Making the straps longer does not alleviate the problem.  I looked at other backpacks to compare and noticed that other packs' straps are attached to a triangular piece of fabric on each side at the base.  This lets them go out wider than the sides of the pack.

If Rick Steves would re-design the way the straps attach to the base, I believe this bag would be a lot more popular.  I am a big fan of his products, but unfortunately will have to return this due to the discomfort of wearing it.

If you feel that you would wear this over only one shoulder, then go for it, knowing this is very lightweight with no stucture.
As for me, I'm waiting for the Civita II.....