Personally, it covered me almost completely. I wanted a photographic backpack that could hold a large water bottle and be within the limits of what airlines consider a "personal item," and also accommodate a laptop with side access for the camera (something you don't find very often). The 15.6" laptop fits perfectly in the compartment (I guess I'm lucky). In the side compartment, the camera and an additional lens fit comfortably, and if you have at least one lens pouch, you can fit two more in the front upper compartment. It also has special straps in the front to hang a tripod.

Now, of course, the space left for unrelated items is not much, but you can't have it all. If you want more space, you can put the camera in the back upper compartment if it's small (a6400 & 18-50mm sigma fits) and completely remove the camera-lens block in the side pocket to make room for other items.

Negatives:
-The quality of the materials is very good except for the front material, which is like leather but easily scratches.
-I would like the pocket for the water bottle to be slightly larger because although it can hold a large bottle, it is likely to slip and fall when the bag is not upright.

At the price of €90 that I bought it, it is a very good price, and even a little over €100 is also okay

Very good bag, protects well.
Classic Manfrotto quality, what I don't like is that the shoulder straps are very thin and the bag doesn't sit well on the back with heavy weight. Additionally, it doesn't stand on its own, it needs to lean against something.
The worst part, however, is that it doesn't have a handle when you have it as a backpack!!

Update 21-08-2021
This particular backpack is probably intended for the North Pole, in Greece during the summer you will swim in sweat if you carry it on your back.
However, I change the stars because it starts to wear out dangerously, so this one is a failure, do not buy it.