Gamers; how do you feel about underwater levels?

For people who enjoy, or who have enjoyed action games, platformers and the like, usually in 2D, what are your takes on the infamous underwater levels?
The general consensus is that oh water levels, you’re never fun.
No matter that it’s intentional, the controls can be awkward or the level can make you jump super high and land in pits.
So, people tend to not like many underwater levels. What about you?