You cant adjust the attack on any sounds. And this means a LOT of sounds come on with a nasty click. Forget doing ambient sounds or anything delicate with this box. The lack of outputs keep it in the toy department, rather than a serious studio tool, so if you have other hardware gear, pay close attention to the fact that you have two main outs (with the effects) and two other outs (that you cannot have effects on)

There is no effect send level.

Overall, I think it's worth the money, and sounds pretty good, so don't think I'm bashing hard on this great little machine at all. But it's annoying too.

The arp is great, but it just runs at the same speed all of the time, some more options would have been nice.

If you want to use it live, you'll need to have all your patterns worked out beforehand, and just tweak a bit of knobs and mute/unmute some parts. You cant edit anything live (you cant even select the kickdrum for editing without triggering it) You cant turn the volume of a part down a tiny bit, because here is what happens: you press the hihat switch and it triggers an extra hihat. damn. then you touch the volume knob, and it makes a HUGE jump in level. Korg dropped the ball bigtime with these issues.

Overall the emx-1 is obviously aimed at cheesy trance music production, which I'm not keen on. I've tried making a more minimal techno with it, but am frustrated at the lack of editing options. I suppose it's very good if you wanna make sloppy and quick trance music with your friends. Anything more will require running it alongside a computer, resampling and editing from there, and that takes away much of it's positive features regarding speed and ease of use

All in all I think it has a distinctive emx-1 sound, and considering the limited effects and shitty outputs, your music will remain sounding like a trance emx-1 piece of music. Great, if that's your thing.