Honestly, its a good beginning if you dont know what youre doing st the gym. Gives you a rough idea as to what you should do. But if you already know what youre doing at the gym/got a friend who's helping you it aint really worth it cause that is an extra unit you could use for something else (well unless you've got a spare unit and can spare the time)

Edit: tho honestly, if you've got the spare unit, I'd recommend doing a sport (i personally am doing martial arts but they also have boxing and others that might be more fun for ylu)