Well, what really can you say? It's a very cool looking red and black sleeve, made of neoprene and it'll nicely protect your expensive laptop. Mine almost perfectly fits my 15.6" Samsung R519, reassuringly snug at the sides with a little bit of movement at the bottom however that's no problem as gravity will make the machine find it's correct seating when carried.
It is a higher quality sleeve than the one that came with my Asus Eee Pc and the zip does feel better made than your average fastener. I think the "anti-shock" claim is maybe a little far fetched however as it feels just like standard - though thicker than normal - neoprene and I'm pretty sure this doesn't have the D30 anti-lock molecular structure found in more expensive bags. While it doesn't come with a shoulder strap it does have loops for you to attach the one off your usual laptop bag if you just want to use the sleeve. It's also small enough to fit inside my own laptop bag although it might not if your laptop's already a tight squeeze inside the one you yourself currently own.
Okay, so it might not be the cheapest sleeve money can buy but it's hardly going to break the bank even at fifteen quid and it's certainly worth spending that little more to gain the extra protection compared against solely using your usual laptop bag.