Hopetrying makes a good point - Things like flirting, making a sale, presenting yourself for an interview, etc all share the common elements of making a good impression of yourself.

Numerous studies have shown that going through an interview with someone to hire them will not actually predict how well they will do their job once hired. Unless you're applying for a professional role with a very set specific set of skills that you can be quizzed on, it's really just a matter of whether you and the interviewer click.

I've been a hiring manager before and have done a ton of job interviews. I can tell you right now I care a lot less about what a persons says in response to a question compared to HOW they respond to a question. The same thing goes for flirting - people usually care a lot less about what's said than how it's said. I'd say the most important thing is being able to present yourself comfortably and confidently.

So with all that in mind, I'd say that the program might be worth paying for if you just want the practice interacting with people, but it is definitely not worth it to me if you just want help with specific questions because there are dozens of guides for that online.