I HATE [insert any one of the many workout names here]

Excerpt from a F45 coach's interview (from studio newsletter):

"What I love about F45 is the efficiency of a powerful 45-minute workout, coupled with the structure of its programming. Each class and phase serves a clear purpose, strategically building on the last...."

There is a science and deliberate program. This is often missed by those ranting about a particular workout because they "can't lift heavy" or whatever the reason of the day is.