This keyboard installed easily. I made some tools out of popsicle sticks to assist with the process, since there isn't much of anything to hold onto when moving the keyboard into place. Only 3 screws hold the keyboard in the laptop after the back cover is removed (5 screws for the cover). And then just the two ribbon connectors to open to release the ribbons. Good design by Lenovo. I had a minor problem with the left mouse key cap, but the cdsmicro people replaced this in short order. The new keyboard does not have the same part number on as the old keyboard, so I don't know if its actually a Lenovo made part, but it works functionally just like the original. Nice light positive feel to the keys. Wonder if I'll get 7 years out of it if like I did the original 00PA370? Time will tell.
Works in my Lenovo P50 laptop, however the shipping packaging was not done well and the keyboard suffered a dent near the Esc key. It still installed and works great though!