Summary: This is the second one i've bought (this one is for my downstairs HTPC). I'm using from my coffee table (8 feet from the computer). It's rated for 15 feet range which realistically is more than enough range. The only difference between the business version is that this comes in a non-retail plain looking box for anyone wondering.
Pros: Good price, Good quality, Very long battery life, Includes duracell battery, Works perfectly.
Cons: Not light indicator for when the caps lock is on, Also no light to show battery life but it shows a light when the battery is low. This is to save battery life so really it's not a con.