Highly-rated mid-arm quilting machines include the Ganmill Charm, APQS George, Pfaff Powerquilter 16.0 and Handi Quilter Sweet Sixteen. They have received positive reviews from users and websites such as The Caffeinated Quilter and Sewing Insight.
The Ganmill Charm is intuitive to use and doesn't make much noise, according to quilting website The Caffeinated Quilter. It comes with features including a mounted tablet, attached laser pointer and stitch regulation.
The APQS George is highly reviewed and has 20 inches of throat space. It's also easy to use.
The Pfaff Powerquilter 16.0 has 16 inches of throat space and a fully-adjustable table which allows for quilting standing up.
The Handi Quilter Sweet Sixteen has a 4.8 star rating on hobby website Sewing Insight.