I bought a Server a few years back via the auction. It was perfectly fine, just a Server and at the time at a lower than normal rate.

Currently the servers never reach the prices I would consider buying at, but maybe if someone was lucky there might be a bargin from time to time.

Ultimatly I cancled the server and moved to the Hetzner's cloud servers as they are cheaper for my use case.

As for Hetzner itself, I am very satisfied with them