I bought this to replace a very comparable HP computer I bought a few months ago.  HP backlit keyboards "go to sleep" after 10 seconds, which was ridiculous. I use my laptop exclusively at night in bed, plugged in. The fact that the HP backlit keyboard turned off every time I paused for 10 seconds was garbage. I called and HP confirmed there was no way to change that.I bought this Lenovo instead, and I am amazed. The fit and finish of this machine is on a whole different level.  The backlit keyboard does not go to sleep (thank you Lenovo) and whole machine has a much higher quality feel to it. I will never buy an HP again and am now a Lenovo fan.  I love this laptop.