Yamaha SK range any good?

The SK range (10, 15, 20, 30, 50D) are great sounding machines. Chances are you may stumble upon one at a car boot sale or cheap on Gumtree as they look like home organs! The SK30 in particular is an absolute beast, featuring a killer-sounding VCO monosynth with aftertouch, a 7-voice polysynth, a string synth, an organ, plus Leslie/ ensemble effects.