Hello! It seems like there are many dissatisfied users of the W510!
Firstly, the right hand speaker did not work out of the box. Took it to one of the Lenovo agents here in Sri Lanka and they said that the speakers needed to be replaced but since it is not a domestic model they have to ship the parts from Lenovo HQ, I agreed and it has been more than 2 months and the service centre says the parts still haven't arrived. I am on a 3 year warranty, by the way.
The machine used to crash occasionally when I first got it and I put it down to Windows being Windows and they went away completely for a while. But now it crashes more that twice an hour! I am typing this post while in Safe Mode because of how bad they have got. Even Safe Mode crashes sometimes! If I try to goto the Rescue & Recovery thing following a reboot after a crash, it also crashes.