I have the GNX-2 and it is OK. I am using it directly into a Korg D1600. Overall it sounds nice. As far as I know the GNX-2 is very similar to the GNX-3 minus the recording doohicky. Be careful to check the amount of recording time you get very carefully as with out a smart card it works out to about 30 seconds for each of the 8 tracks. I think the advertising blurb can be misleading.