I once worked for an old line telemarketing company. I was the guy who trained sales people, not telemarketers who read scripts. I was also the guy who filled phone dialing consoles with scammers when it came time to bid contracts, scammers being the type of people I could not hire for anything other than contract bids. Scammers are good. If you take a deep breath, they can close a sale on that. So, movies like The Prime Gig and Glengarry Glen Ross are fascinating because, if you pay attention, you'll get to see things that most people never get to see, never mind believe.
The Prime Gig is well done and more than real enough for those who like stories about scams. The acting is good and there's an absence of melodrama. Everything is done straight up. Movies like this are difficult to end but here we are given a real life ending. The ending works. The movie works. I very much enjoyed it.