I wanted to respond to a few questions here. Like Donny said - I don't sing and don't need the vocal processor. I will wait awhile before I take the KMA on it's next gig. Here are the points that stick out for me about using the KMA as a stand-a-lone keyboard after using it on two gigs now.
1. Make sure you are in good lighting or take a light with you because it is nearly impossible to see the buttons otherwise.
2. Be sure to get the setup you like before playing gigs. If you don't you might get some unpleasant surprises when you change STS voices or variations.
3. Yes, the little KMA can function as a stand-a-lone gig keyboard.
4. Don't expect it to sound like your PA-Whatever or your T3 or T4 -- it doesn't.
5. I liked the three sliders that allowed me to control the master vol, accomp vol, or lead voice vol. That is nice feature.
6. The intros and endings are not bad and once you get to know the keyboard you know which ones to use.
One last observation: A lot of arranger players are not techie types and don't really have an interest in fooling around with any keyboard they buy - they just want to sit down - pick a style- and play. That is really the group I belong to. Many of the available ways to tweak the KMA require a knowledge of what the parameters mean and how they effect the overall sound. Where does one learn about these things? It would be nice if there were tutorials from the various manufacturers that helped users to get the most from the keyboard. One other thing - Korg should provide a computer program to not only convert styles but to help organize them once you get your setups in mind. I understand Korg users have been asking for this for years now and Korg has yet to provide much of anything.
All said and done I am very pleased with my KMA and for the amount of money it cost it is a very good deal and I will continue to enjoy it.
Deane