He was fine with FPU for the most part. He just had the same reserves I did about paying off stuff by small amount vs interest rate. He went to all the meetings with me and actively participated, though I could tell it pained him to be there. He really just doesn't give a crap about finances.
So, here's the thing: If you're in debt, and arguing with the Dave Ramsey Snowball approach "because it's more efficient to pay off the highest interest rates first," but you're still deeply enough in debt that this even matters, you're missing the point.
If a purely logical approach to finances worked, you
wouldn't be in debt - possible exception a mortgage, *handwave.*
His method works because it goes after the emotional/reward side of your brain, and if what you're doing isn't working, try that instead. It's something different, and more frequent dopamine kicks early on in the process.
I think Dave Ramsey/FPU are a good introduction to a "Hey, you don't have to spend your life deeply in debt" view of finances. I disagree with him on some things, but they're the things that matter when you've got a lot of money in the bank and no debt, which isn't really his target area.
It's also a great intro to money management for people who suck at it. If someone I know is having problems with their finances, I offer to cover their fee for FPU, on the condition that they attend all the courses. It's a really good "101" class on money.