The big guy doesn't tell you there's a so-called "diagnostic fee" of $50 until AFTER they're done (at which point you could LEGALLY object)...and he cowardly uses the ladies in the office as a shield from you becoming argumentative.
And the diagnosis is nothing more than read 'check engine' codes, which you can get done for free at O'Reilly's , plus a test drive.
They don't even check the quality of your transmission fluid before their grand conclusion that you need a new transmission π for $3600 π
It's like a doctor immediately recommending heart surgery before trying smaller steps first. In my case it looks like fresh transmission fluid might be the solution ( still keeping an eye on it)