I don't have one, YET, but I have a TDI that needs one real soon and its a PIA. The last I did was on a stand, so it was accessible but still a PIA and not real cheap. Then I need the software to make sure the timing is adjusted properly.Ok you can't leave it at that, share your traumatic bent valve story with us.
However, I have lost count f the number of people I know that lost their whole engine or a lot of $$ on top end repair. The vast majority were under the 100k timeline a few were because the owner had no idea it took a belt. And the 100k timeline varies on the quality of the belt. Some, including my OEM are only about 70k.