Comment by danieldk

While the POs are fun devices for their price, the KO-II is a very limited, frustrating device. I fell into the hype and got one and after only two weeks after a complete beginner I realized I bought an over-expensive toy. An SP-404 MKII only costs a bit more and completely blows it away - actually usable display, almost unlimited sample storage, nicer step editing, far better and useful FX, etc. TE hypers will say it is much more complex and thus less fun and 'immediate' (they love to use that word), but for me the learning curve was about equal (for using the same functionality, the MK-II has much more functionality).

Or, since this is Hacker News. The Dirtywave M8 is a much much nicer device (does sampling and is a good ol' tracker) with synths, etc. Sure, it is more expensive, but you can make an M8 headless for just the price of a Teensy MCU. The UI is also much quicker and nicer than the KO-II once you get a feel for it.

tl;dr: bought a KO-II, even as a beginner I ran into its limits almost immediately. There are much better devices out there at similar price points (or much cheaper if you hook up an M8 headless to a laptop or cheap handheld game console).