If I had to choose the best thing about Centr, it would be how easily it fits into my lifestyle. I chose the "Centr Unleashed: Beginner" program for a couple of reasons. First, it doesn't require any equipment (which was crucial for me, like I've mentioned), plus the workouts range from 20 to 30 minutes. And because the trainers offer more advanced versions of each exercise, I can do the workout with my parter, who motivates me better than I can motivate myself. This program also has intermediate and advanced options, but there's the "Centr 6" program which recently launched, and is supposed to be a back-to-basics-style plan.
Image Source: Centr