this looks amazing indeed, i can't imagine the amount of work that went into the development. but the interface is definitely something that sets it apart from a more typical modular workflow.
i can see this being used either as a heart of a small setup where the complexity of the ui would be outweighted by how many other modules it would save (and the possibilities in a such small footprint - this and a recorder would be a perfect little lab for field recording experiments (put it in something like http://pulplogic.com/product/lunchbox-traveler-basic)
or something you'd reprogram fairly rarely, so you would have a bunch of predefined chains with well defined modulation set up and controller modules - having only one knob it seems to be designed to be used with external control in mind.
still, i like how much more straight forward http://www.rossum-electro.com/products/assimil8or is, 8 samples, a trigger and 3 assignable CVs for each.
but while both allow to be controlled externally, and you could use teletype or ansible or trilogy to control either it's not as direct as a native support for grid/arc would be (i'm actually curious how people integrate other samplers like reflex liveloop with their monome modules - should create another topic for this) but having a paged interface where you control samples directly from a gird (slicing etc) would be a lot more powerful. perhaps somebody will consider creating a simple sampler module with i2c support.