Hi, does anyone have any experience with the "Pentacon six TL"?

I know of one that is available (rather a high asking price) but, on searching the net, I seem to get the vibes that -though the lenses age good- the body (especially the gear train) is rather fragile and (loading film) is fussy, and the winder is not robust or dependable.

What do you think? Is it worth taking a risk -or not?