What things are both the best and the worst at the same time?
I had a discussion with a friend recently and during that discussion, one comment was "Fitted sheets are really both the best and the worst", of course referencing them as awesome when put on a mattress and the worst when you're trying to fold them.
What else do we have that would qualify for being awesome, but also the worst in a different context?
Genitals. Both male and female. (Generally) awesome when in use but a maintenance nightmare otherwise. Reasons for being the worse (some depending on gender) include: initiating takeoff visibly and without reason, leakages, being very fragile, requiring more packaging than any other body part and others
Funny thing I heard is that it's like a punishment for not getting pregnant (by the body). Post pregnancy my wife said she had periods but without the pain, like the body was saying 'I'm happy for now.'