In generell, good build quality and a nice packaging with all the enclosed cables and even a set of batteries. But some pots are stiff and the knobs are slippery and lacking a clear visual index. Also, the switches need some force to move, and there is not much finger space at some places. If you have small fingers, a strong grip, not too dry skin and a clear eyesight, then I guess nothing of this should be an issue. :)
As for the sound though… Ok, the circuits for VCO and VCF ensures a good sound to start with. Nothing to complain about there. But the effects are seriously BAD. The delay is extremely noisy (maxes out at 500 ms, i think), and none of the reverb algorithms add more than a subtle hint of space. Not quite what I expect from especially a drone machine.
And then there are the design quirks that I find quite limiting. Yes, having two separate voices, each with a VCO and a VCF, can absolutely be a good thing. But if you want a thicker wave into a filter, there is no way to mix the two VCO:s first. And if you use one VCO to fm the other, then the output of the modulating VCO is disconnected from the mixer. So, unless you use the LFO for fm duties, you end up with just one voice - and none of the melodic possibilities of the many LFO waveforms, since the LFO is now busy doing higher frequency triangle stuff (most likely).
Another way of thickening the sound is to patch the LFO to PWM, but that has the same disadvantage - the LFO will be busy doing just that.
And about those LFO waveforms… Having 14 of them to choose from looks good on the spec sheet, but in practice you may run out of musical ideas sooner than you thought. Especially since there is no morphing between the waves.
Conclusion: If you are expecting a stand alone, full featured drone machine, then you may be disappointed (after an initial period of joyful tweeking). But as an addition to a modular setup, with more modulation sources and decent effects, then this might be an ok deal.
