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.