Servo vs. Clutch Motor Sewing Machines Parts and Sales in Los Angeles

So I’ve been sewing on my Juki DDL 8700 for about a year now. I’m pretty comfortable with it, but would still like more control of the speed. Speed is not an issue in most instances, but I would really just like the versatility. Not to mention the clutch motor keeps my girlfriend awake. That being said, what are everyone’s thoughts on Servos? Is there one you’d recommend? The only one I’m finding much info on is the SewQuiet 5000/6000. Just looking for some opinions and suggestions. Thanks!