Microsoft Natural Ergonomic Keyboard 4000

Pros: - Ergonomic
- Inexpensive
- Lots of Function Keys

Cons: - Difficult to get Function Keys to work
- Takes a little getting used to

Overall Review: I got this keyboard at a greatly reduced price as a Shell Shocker deal. At normal price, it is still a pretty good deal. I was not expecting much from it, but I ended up being pleasantly surprised. In terms of ergonomics, this keyboard is really nice. It feels very natural to rest your hands on. Rather than being raked toward you, the keys slope down as you go up the keyboard. It took me a while to get used to the keyboard, but I now really like it. The keyboard has a lot of function keys, but I had a rather difficult time actually getting them to work. And still, they only work on the rarest of occasions. However, I have always had issues with function keys, and I did not purchase this keyboard for the function keys. Construction quality isn't bad, and the keyboard seems durable, but I do worry that the rubber domes will wear out faster than I would like them to.

Overall, this is not a bad keyboard. If you do a lot of typing, you owe it to your wrists and hands to try this thing out.

Pros: my large hands love the split keyboard with raised center.

Cons: the letters are painted on and not incised into the keys, unlike the previous model. The letters began to wear off within just a few months. After three years daily use, the letters are so worn off that only a touch typist can use the product. And then one of the non-mechanical keys failed, so the keyboard is toast.

Overall Review: overpriced for what you get -- updated 6/11/2016 after product failed in use