2018 traverse high country, no payments, Told there was metal shavings, so needed new transmission ( and it did Sutter, even after flush and fill)

• Replaced at 100,050 mile. $8k later.......
• Everything else works.
• Figured you cant get a good car for $8k.
• Told its a genuine GM replacement, meaning 100k warranty

Has anyone else replaced their transmission? Have you had good luck? I am hoping to get several more years/miles out of it

CG