Great, I really like the practicality and the sleek minimal overall styling. Many people have commented positively on mine. I have three minor gripes though: 1) the main zip on the backpack gets stuck on it’s adjoining lining often, which makes it a bit cumbersome top open and close quickly. 2) the waterproofing of the material of my backpack leaves to be desired, despite the nice covered front zip, which suggests waterproofing, rain enters the interior easily. I had to find out the hard way, some of my stuff, including electronics, got moist, luckily none of it was fatal. Extra waterproofing is necessary if you want to use it in rainy weather, and 3) when used combined, if the backpack is heavier than the bottom, for example when carrying a macbook, camera, chargers etc. in the top backpack and just clothing in the bottom, the combo has the tendency to topple when carried on the strap.