honestly? it'll be a great novelty having that kaos pad to fuck around with, but the build quality is poor and the design isn't too great IMO.
the knobs will become loose and feel very plasticy and become tiresome very quickly.
it's all style and no substance and will be fucked in 6 months, wouldn't bother with it personally.
how many channels you after, does it have to be 4, or would 2 suffice?
allen and heath xone 22's are real nice. all the same components and everything you'd expect in the higher ranger mixers obviously catered towards a 2 channel verison.