Have you ever used free spin to make money? At least a noticeable amount and withdraw it?
What about you ? How do you feel about about free spins?
2-3 times I managed to withdraw from free spins, in 9 years... Usually, we don't win anything from free spins, or it's something so small and not worthy. Maybe once in 20 times we get lucky and hit the bonus round (or some big win) that gives us some nice balance for playing. But after that, we still have wagering requirements... and it's not simple to finish them only by playing slots. Don't forget that some casinos have max withdrawal amount from free spins (which is a stupid rule).
Free spins are interesting, we turn them on and play and that's it. Most of the time we don't get anything from it, but as I said sometimes we catch some nice winnings and we can play, and if we are really lucky we might get away with some profit.