I had the SD5 for about a year, I ended up getting a SD1+.

I have always loved the Ketron Styles, especially the sd1 series styles. It did take some work to get the SD5 to were I like it, I ended up adding about a half a dozen SD1 styles to the SD5.

Also I found that using the Program sounds rather than the preset sounds do add a little more umph.

You really can't compare a Ketron to a Korg or Yamaha, they are different animals.

I use my Pa800 for recording and for gigs that are more ballroom/resteraunt type were the nuance of play can be heard and appreciated.

The Ketron is used for more of the big dinner dances, and weddins, for some reason the Ketron can fill the room better with it's sound, probably a combinantion of the excessive fx and more of an analog/record type sound rather than the more polished CD purity of the yamaha/korg.

I love both and hate both.

If we could use a combinination of Ketron, yamaha, korg styles , op systems, and sounds, we could have a amazing system