I have received this backpack today. The built quality is good but there are few issues, if fixed it's amazing.
1. The laptop sleeve is needs to be at least an inch wider. The laptop needs to be forced inside as it's barely wide for it. Tried two laptops both 14 inches.
2. There is zero protection at the bottom of laptop sleeve. Luckily I ordered the rain cover now I am using as bottom padding otherwise it would directly hit the floor damaging it's side.
3. No dedicated space for rain cover, if a pocket can be made at bottom it will be great.
The backpack sits high on the back so it's definitely good back support. One thing to keep in mind it has just a single main pocket with no partitions, so your shoes will go along with rest of the stuff.
Lower hidden pocket will only allow cellphone and nothing else with it. Zips are good quality. Overall good buy.