Honestly, slow playing is something I rarely do — and the more I learn about cash games, the more I think that's probably the right approach, at least at micro stakes.
My default is to bet my strong hands for value rather than slow play them. The main reason is that at micro stakes, players call way too much to justify giving free cards. If I flop a set and check to "trap", I'm often just letting my opponent see a free turn that could complete a draw, and there's no guarantee they'll bet into me anyway. Most of the time I'd rather just build the pot myself.
There's also the risk of killing the action entirely. At these stakes, a lot of players will simply check back if you give them the opportunity, which means slow playing often results in winning a smaller pot than you would have by betting normally.
That said, I think there are rare spots where slow playing makes sense — mainly when the board is very dry, your hand is extremely strong and well disguised, and your opponent is aggressive enough to bet if you show weakness. But those spots are much less common than people think, especially at micro stakes where aggression is inconsistent.
As someone still learning cash games, I find it easier and more profitable to just bet my strong hands and focus on sizing correctly rather than trying to get fancy with slow plays.