Sounds like the folks that fixed your trans were decent and straight up. That can not be said about quite a few trans shops I've stopped into over the years.
A friend of mine had purchased an older mopar station wagon from my mom, it had really low miles and had sat for awhile garaged - but shifted rather sluggish. Helped my bud drop the trans pan & the fluid that came out looked pretty good considering it's age. A few months went by & and he still thought it should shift harder. Went with him when he brought it to a local trans shop, after a bit the tech came up to the waiting area & said that the trans was close to being totally shot. I called BS and asked him to show me how he determined this. With a smile the tech walked us over to his lift and bench and proceeded to show me the trans pan with a perfect pile of metal shavings on it. I advised him that he should make sure that the shavings are at least covered with trans fluid the next time he trys that stunt. He turned so red in the face, I thought his head was going to explode.
Needless to say, my bud had no service done there.
05 TJ RME 42RLE with some things
05 KJ CRD 545RFE, GDE Eco tune, Franky II, Al's 4.5 A-arms, JK Rubi Moabs, Silent Armors 245-70-17's, Spidertrax Adapters, Rola Basket, Fumoto Valve, Pinch welds pounded - Sold 2015