Livestrong.com is a quite popular website that (in their own words) "provides the blueprint to simple healthy living". It was founded by world champion cyclist Lance Armstrong, and it covers a wide variety of topics that help people make better choices about their health and wellness.

While compiling information for the article linked below they reached out Heather Jeffcoat for her opinion on several topics, including the best options for Pilates reformers. To quote Heather:

Picking out a Pilates reformer is like shopping for a car; the best machine for you depends on your budget, how often you're planning to drive/use it and which bells and whistles are important to you.

Typically, reformers with fewer features (straps, springs, pads, loops and attachments) will cost less than higher-tech options. Decked-out machines can cost up to 10 or 15 times as much as simpler options.

"The more accessories and attachments a machine has, the more options you'll have for improving core, arm and leg strength," says Heather Jeffcoat, DPT, a physical therapist who specializes in using Pilates with her patients at Fusion Wellness & Physical Therapy. "A full-service machine will give access to over 1,000 exercises so you can create a workout you'll never get bored of."

The full article can be found here.

More about Livestrong from their "About" page:

We believe achievements start with education and a commitment to small, daily choices. We create content that engages and informs, and we complement it with practical tools to make living healthy an easier and sustainable process.

Our mission is to empower anyone at any age or stage in their fitness journey with the information and tools that will help them to make better choices – even just one small better choice can motivate them and improve their potential to truly thrive.