As the sort of guy who still has a Commodore 64 set up in his basement*, and who comes from the generation that thinks it pretty much invented nostalgia, I enjoyed this.
My 14-year-old self did his share of sound design on the C64, but I didn't have anything fancy. MIDI still seemed like out-of-reach high-tech. I had (and still have) the Music Composer cartridge. The only reason I haven't bought a SID Guts Deluxe module yet is because it's 19HP, which drives me nuts.
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* Okay, technically the VIC-20 is set up at the moment. But the C64 is always right there.