First off I'd like to say that the sympl team is great and very responsive. I emailed them letting them know I had an upcoming trip to Europe and needed my bag before the pre order would ship. They promptly responded and were able to get me a bag before I had to leave.
I used this backpack for a 7day trip to Croatia and it was everything I could ask for. Zippers are sturdy, many organizational pockets and it holds so much. I only brought this backpack for an entire week (laptop, clothes, shoes, headphones etc). The materials used to make the bag seem high quality making it very durable a sleek.
Only complaint about the bag is that when fully loaded it sticks out pretty far and can be uncomfortable on your back after a while. I think that's what the shoulder strap is meant for but I prefer not to use it.