After many months of Internet research, and several posts asking advice of my QB friends, I finally bought a Juki Exceed F400. I still have lots to learn about it, but love it so far. Let me give a shout out to Kens Sewing Center
www.kenssewingcenter.com where I bought it. They sell Singer, Juki, Janome, and Brother and have great prices. I have no affiliation with the business except for being a satisfied customer.