Very great product!

The product is useless without software!

Unfortunately, InMusic, the company that now owns M-Audio also owns Alesis, Akai - so buyer beware as it's unclear if the quality control problems are just with the M-Audio products or with the other keyboards as well

The Product did not work the software download did not fix the issue.

good Product.

hassel!I recommend this product!

I recommend this product to anyone trying to get their hands on a controller and not wanting to pay a boat load of cash for it.

Fast service from seller and great product!!!

you purchase this product, just be aware that you're doing the equivalent of buying a car from someone who says it's good to go, but in fact it's not good to go: it doesn't have a gas pedal; you have to supply that yourself.

M-Audio always makes a fine product, but I recommend buying the Oxygen 49 or Oxygen 61