I've only used this a couple times so far, but have been impressed.
Build quality is solid, it's light, it has compartments everywhere. Then, you notice the little things:
- The zippers all have easy finger loops
- The rain pouch is attached, so it won't fall out when you unzip it
- The helmet attachment length is adjustable
These are just a couple examples, but very impressive. No doubt, this is far from a budget pack, but it's worth it.
I primarily use mine for a short 10 mile each way commute to work, which is not an everyday commute. Got the 34L and it holds more than I'll ever need for that trip. Will be very good for any potential overnight trips.