Positive (says my son): the keyboard yourself mechanics, lighting, settings, ergonomics, dexterity Negatives: Exactly one year later, the safe little loaded TAB key made - as described by many is not holding the thin plastic of the lock and jump apart. The defect could be provisionally repaired with superglue if the next key breaks out, I will send the keyboard but back (let's see if the still problems with Logitech to work after 1 year after purchase). Anyone who thinks that a user problem and not a production problem exists, which I like to show my own 8 year old Cherry keyboard. Here's never a key dropped, this keyboard has survived two toddlers and works like the first day.
