I've found that at low stakes floating flops is very proffitable, as a lot of the low-stakes donks tend to min-bet with air or with a very small peice of the flop. They may make another min-bet on the turn, although 80% of the time a raise will make them fold.
Note that I play sit-n-go's not cash games. And that this topic is very situational and the question very general.