But there are a couple of inexcusable attributes to how the thing works.
1. If you're recording a pattern, you have to hit 'stop' to end recording.
2. If you switch patterns, it does so instantly, so you can't really flip between patterns and stay on beat.
3. You change patterns by hitting '+' and '-' buttons, and since it retriggers the new pattern, with no regard for the clock, you are stuck with switching between adjacent pads, and you have to trigger them very precisely to sound correct.
4. No input quantize during real time record, so you have to be very precise rhythmically in order hack patterns live.
This was an 'impulse bid' on my part, and I got it cheap enough I might even make money by reposting it on EBay... or I could probably sell it to a local hip hop producer. The thing sounds pretty great, and BeatKangz filled it with a load of nice sounds.
But jeez, it's 2009 and there has been 30+ years of collective experience with drum machines. We have the technology now -- hell, all of my objections to how the Zoom 246 works could be fixed by a different ROM! The only machines that come close to my desired paradigm are the Akai MPC series and the Korg ER series, but those are both more expensive than they need to be.
It's enough to make me want to design my own!