This was great for my style of travel and glad it became available just before my trip. I weighed up the Tom Bihn Techonaut and almost ordered before the EXP35 was in stock. Glad I held out.
The bag is massive, I fit 5x tee shirts, 5 underwear and 5x socks + 3x board shorts and 1x dress shorts in packing cubes and a pair of reef shoes with ease (approx 50% full and 5.5kg). No issues with it being carry on compliant - including regional turboprop aircraft.
The organisation is great, pocket on the inside for toiletries, shoe pocket keeps the sand and dirt away from everything, and the grab pocket on top was handy for security/customs.
Once I arrived I lived out of the packing cubes and had a great day pack for when I needed more gear for a day. Highly recommend the Chase Reeves and Pack Hacker reviews for more about this bag.