This is my second Rolleiflex T. In 1987 my father in law gave me his Rollei T. He bought it in 1966 and used it for wedding photography. The camera is still as good as it was when he gave it to me. It hasn't ever let me down. It was serviced once in all that time to put a sticking shutter right.
I've also had 3,5f Planar Rolleiflexes and I can tell you I never liked the thumb wheels on them, they always ceased.
There was always a certain snobbery about Rolleiflex models and the T always took a bit of a hiding. However, the results spoke for themselves!