The 650 is better than the piece of junk that came with my computer but is still substandard and does not stand up to the quality of the keyboard that came with my previous HP computer. It has no "feel" . You never know where your hands are on the keyboard and the mouse that came with it just quits working periodically. Im embarrassed for HP.
I bought this to replace an older, bulkier keyboard and mouse combination. This model is comfortable to use, responsive, and easily fits on a small desk. I would definitely purchase again.