Targus is a brand that I trust but..
'Impax' suggests that the cover is to protect your laptop from impacts. If so, then what sort of impacts? Certainly this isn't able to protect your laptop from the impact of a drop to a hard surface. Moreover if you don't want to drop something surely it is a good idea to have a handle? also..
Where exactly are you supposed to store the charger/mains plug? It's NOT very practical in that sense.
IT WILL PROTECT YOUR LAPTOP FROM RAIN AND SCRATCHES while being stored or carried.
It is very COMFORTABLE to carry.
The EXCELLENT BUILD QUALITY is something that you can enjoy due to RICH TEXTURES and EXCELLENT ERGONOMICS (if zips could work like a dream then this one does!)
If you have a charger at home and work, like I do, then all I do is zip up the laptop, carry it to the car and stow it in the boot for the journey home. For that purpose alone it is excellent.