I had a dedicated server at Hetzner that would completely lock up every few weeks to months randomly, so they aren't always reliable. I ran it for about a year as I always had other things to deal with, but the abrupt loss of my services was kind of embarrassing and I should have reported it sooner than I did.

To be fair to Hetzner, eventually when I reported it they immediately took the initiative to replace it, no questions, and gave me options for when I'd like that to happen. Never had any problems since.