If you want a comedy based around the gym, you've got one. The jokes will land well enough amongst their intended audience and if you wanted an excuse via anime to visit the gym this is enough justification.
Subjectively: I enjoyed watching the anime. There were a few low points; however it was good for an anime comedy. The characters are typical types you could imagine. As per usual, for this type of anime there's no real plot advancement, as it'd break the character setups for the jokes. Nothing too special, they get the job done however. Nowhere near the greatest of comedies but a good addition none the less.
3/5 Enjoyment.
3/5 Overall.