In the '90 they were renowned for many of their products (multimedia kits, anybody?). I remember having purchased a Sound Blaster Live and was kind of blown away at the time with its audio quality, maybe because what I had in my motherboard was really bad audio.
One of my siblings had a Creative Zen Vision for ages, it was rock solid to the point that he destroyed its case and audio jack and the thing still worked perfectly. It was possibly one of a few products I've seen that resisted so much and kept working.
I do understand that the market for audio players now are kind of niche/dead if you can run an audio player on your phone, but I would still buy a good quality and affordable audio player that is not polluted with android. Just put music and play it... Their audio players were nice, not the best in terms of software. I owned a Zen Pebble and a Zen Micro and at the time I was quite happy with them.
One thing that is not minor is that they never seemed to have any interest on supporting other OSes rather than Windows or MacOS (a sign that still reflects that they haven't adapted to today's open source movement). If it weren't for the OSS community their cards wouldn't work on Linux.
Another company that suffered a similar or worse fate is Turtle Beach. I remember that they sound cards were also renowed at the time. They now make headsets and joysticks. I guess both companies didn't learn to adapt to the unforgiving tech market and kind of perished.