sim synth never sounded legitimately analog but it has a really unique sound among early analog synth software and for that I love it. I actually use it A LOT! There's a synthetic quality to every aspect of the sound that's plastic and weird and for certain parts its perfect. Music is about context. If you get hung upon what tools you wanna use you will make generic music. Find the stuff that expresses what you're saying even if its something as reviled as simsynth. Maybe there's going to be a retro software synth revival!