Bought the V1 years ago, and was given the V2 as a warranty replacement. Even more pleased with the V2, and now my wife wants one. High quality materials, thoughtful design of features. I get asked about it everywhere.
I originally ordered the 20L but after my employer upgraded me to a 15.6 inch laptop, I needed the 30L version which is plenty big to fit the laptop and all the gear (photography and everyday carry) I need. Do note that the best the bag can do is a 15.6-inch laptop and a 13-inch tablet. The laptop compartment is pretty tight and snug so this may not suit your needs if you need to haul around more than one laptop. Otherwise, this bag is definitely recommended!
I bought the 20L version for travel for both photo and business. Guess I should have bought two? It is perfect for the laptop, tablet, headphones and all the charging cables we need to carry today on trips. The various pockets, the magnet snap-close, the interchangeable dividers all work so well. Great design.
The backpack is very good quality with lots of very useful features. I have rarely seen such a high-quality and well thought-out backpack or camera backpack.
I've had this backpack a few years now, and it's fantastic. The flex fold dividers let me arrange the space depending on what I'm carrying, it's held up to everything I've put it through (photographing weddings, hiking in the rain, cycling, commuting, and more!). I hadn't expected it to become my everyday bag, but it's so good that I come back to it every time I put it down. I recommend this to everyone.
I had a v1 backpack that got some damage on a side zipper, was sad as could not use it. Had this set aside for a long time and then decided to get in touch with Peak Design to get is fixed, they were super helpful and committed on their lifetime warranty. Happy to be able to wear this backpack model again :)