If it helps, nobody's experience generalises, including mine — it sounds obvious written down, but it took a while to land. If you had to pick the top free adult site right now, which one would it be? Broadly speaking, expecting any single conversation to work out is the wrong frame — that has been consistent for me across a few different platforms.
My take: trials that hide the cancellation route are not worth starting — it is the single change that made the most difference.
Broadly speaking, a month is about the minimum before judging any platform — that is the bit I would tell anyone signing up today.