I have Lenovo T420 as work laptop, it costs nearly as much as my unibody 13" MBP did in 2010, except it has a shitty trackpad, keyboard (which isn't backlit, instead they have this useless lamp at the top of the screen), the screen doesn't have auto-brightness which I consider a must now and it overall has this cheap, plastic feel to it. The top border of the display separated from it's backing after a couple months (and I'm usually gentle with my tech), the optical drive eject button is positioned in such a way that you always accidentally trigger the open action - everyone at my job has this problem, I think it's because the eject button is the right most object on the side and very easily pushed.

If I paid that much of my own money I'd be very pissed. Given my experience, I will not be buying Lenovo machines. Dell however was quite a nice workhorse, still not in the same category as MBPs though.