Feature:
It is exactly what it claims to be. You have to understand what you need and if this will fill your need. This was a very low cost way to add some quality instrument tracks in my home studio.

Quality:
Again, it is exactly what it says it is. I am not a concert pianist. If I were I wouldn't try to play a concert on this :-) But that is not what it's for, although I could definitely see using for some fill at a gig. I think with a case it would be ok. You have to take care of your equipment. Don't blame the manufacturer if you don't. I have a Martin acoustic guitar I have carried through ice sub zero winters and hot humid summers for ten years. It doesn't have a scratch.

Value:
If this is what you need, I truly believe there is nothing like it for the price.

Desirability:
Nothing sexy. It is what it is and does what it claims well.

Sound:
The key rig software it comes with is great. Capable of a lot of really good sounds.

Ease of Use:
Interfaced well. Software installed perfectly. I gave it a nine instead of a ten because the manual could be more informative and a lot clearer.

Support:
I have not had to contact them.

Overall:
It will work for me for some time to come.

Feature:
In back: DC adapter port, USB port, MIDI out, sustain port, and on/off switch. 49 keys (4 octaves), pitch bend wheel, modulation wheel, volume fader, and + or - Octave.

Quality:
You get what you pay for. And what you pay for is up to you. Know what you are purchasing to detail.

Value:
sure, it is what it is.

Desirability:
N/A

Sound:
This product does not make sound. MIDI is not audio. MIDI is a digital protocol expressed in binary, electrical, or magnetic signals used to communicate, control, or synchronize with each other.

Ease of Use:
It is a MIDI controller. MIDI in concept is simple. Yes, this product does what it was built to do.

Support:
I tested the software drivers on two OS. Windows MCE, and Windows XP Pro. I've found that most software applications that I use for recording works the best with WindowsXP Pro. Which by the way is discontinuing production, so pick up a copy while you can. Or just go buy a Mac.

Overall:
I will use this product until my needs outgrow the things I own.

Feature:
Keyboard is OK but nothing to write home about

Quality:
Again, software won't install on my versions of Windows

Sound:
Can't say since it won't install on Windows Pro or Windows Media Center. M-Audio support said so sad, too bad.

Ease of Use:
Again, software won't install on my versions of Windows

Support:
Again, software won't install on my versions of Windows. Support was very un-cooperative and said nothing beyong we don't support Windows Pro or Windows Media Center.