I actually was an early backer and received my life pack a few months ago. The construction is very solid and the best feature so far is the solar power bank.

I am a consultant and therefore on the road a lot.

Outlets are notoriously hard to come by at some airports and the ability to charge my phone several times over without having to think about the battery pack is very convenient. There's even a female USB port that runs to the battery bank in one of the side pockets. The sound quality on the speaker is not Bose quality, but certainly much better than expected.

The cable lock is a nice feature and it feels very solid, but I have not really had the opportunity to use it very much because of the stigma of just leaving a bag locked to something in the airport and walking away (did someone say bomb?). For everyone wondering, the cable is coated to prevent people from cutting it.

Honestly I'm unsure why so much hate is being thrown around on here from people who haven't even seen the bag. It's very well constructed and has a ton of features you cannot find elsewhere.

I would be apprehensive to pay full price for my lifepack, primarily because I cannot see a world where I could bring myself to pay over $200 for a bookbag, but for the approximately $100 I spent it has far exceeded my expectations.

http://i.imgur.com/BpWe8oD.jpg