Former FastTracker II [1] user reporting in.

The Gravis Ultrasound had an incredible price to performance ratio back in the day and made high quality wavetable synthesis at "CD quality" available to the masses.

1. https://en.wikipedia.org/wiki/FastTracker_2

Edit: The fact that quite a few games supported the GUS out of the box or received patches to do so was also a well received boon on my side.