I have a Tom Bihn Daylight briefcase I love and have used for several years. I frequently want a bit more space though, so I've been eyeing this bag for some time now. When the new Spectron material was announced, I used that as my excuse to pull the trigger finally. I'm so glad that I did! If we're being honest, I wish the color were a bit more interesting than just black, but any hesitations I had about Spectron were unfounded. It still has a durable "this is going to last forever" Tom Bihn feel while still being delightfully pliable and lightweight. Chef's kiss perfect balance. The middle water bottle pocket is a clever design that is every bit as useful as I was hoping it would be. I also appreciate the extra built-in organizational design elements missing in my previous minimalistic Daylight bag. The bag expands nicely for my heavier carrier days (13" laptop, 11" iPad, lots of work folders, etc.) while still maintaining a streamlined profile on more minimal days. Not sure what else I would even wish for in a bag!
OK, fine, I guess I do have one minor little gripe... For some reason, the clip that attaches the shoulder strap to the bag has a tendency to squeak when rubbing against the plastic connection D-ring.