This is a super durable, high quality sleeve. Padding is extremely soft and protective. Fits my Precision 5510 snugly. Feels like it could take a significant drop without damaging the laptop.
The profile of this sleeve is quite large because of all the padding so if your bag already has a snug laptop pocket you might want to consider this. Also the pocket for the power supply could be larger, I have a bit of trouble fitting my standard Dell power supply with the cable attached.