Excellent bag, exceptional service.
I've had the bag for a few weeks as a daily bike commuter in SF. I love this bag. The sleeve for the laptop is safe and well-padded, and it's nice that it's easy to get to apart from the larger storage compartment. The large storage compartment is great. My office has a gym I go to after riding in, so I carry a lot of clothing items, food, and other items that all fit well. The additional internal pocket is great. The two external pockets are so convenient for quick access to keys, headphones, sunglasses, gloves, and more. The umbrella holder works great, as does the bottle holder. I have a travel coffee bottle that fits securely and stays in place. I haven't used the rain cover yet, but it looks nice. Without the rain cover, the bag has been waterproof against the misty San Francisco mornings. The attachment system is awesome, it's so easy to clip on and off your bike rack. The design for the transition from pannier to backpack makes the change super quick once you get used to it. I can't recommend this bag enough.
Additionally, this company cares about its customers. When I initially ordered the bag, they accidentally sent the 22L bag instead of the 30L. I contacted customer service, and Reid was quick to respond to my email and all further communications. Reid was friendly and apologetic and ensured a new back with a return label went out immediately. Mistakes happen, but the level of customer service in rectifying the issue quickly shows they stand behind their product and customers. Overall, the bag and the company get an A+ from me.