I really enjoyed the depth that Startup Podcast/Gimlet Media went with Dating Ring. In my opinion, there's a lot of great content you can cover in an hour but it's hard to cover new content given how many other podcasts there are.
It was the opposite of the YC podcast: I'm a human that grew up, I went to college X, Applied to YC, Tried X, Y but Z is the one that worked. Company is great we raised money.
Fwiw, I do like the success stories but prefer a longer interview (90 min+) because you get a real sense of the person vs the PR version of them/their company.