My Laptop "Dell Inspiron 1750" with 17.3-inch fits in well.
However, a little air remains. But me do not mind that.
The bag is easy to grip and makes previously a robust and solid impression on me.
The Complementary services interior compartment can be used to stow, etc. For example, a mouse pad or leaves and to protect it from wrinkling.
Furthermore, the zipper runs smoothly.
The only drawback of the protective sheath are irreversible bruises when something pushes to long on one spot of the protective sheath.
The plastic comes after the action (depending on the pressure strength) is no longer in its original state back. Ie you have small "dings" in the fabric.