[psytrx]

They definitely have sensible backout mechanisms for their free tiers (i.e. Pages, they still serve static assets but disable compute/Functions). Also, their docs are written pretty well, and openly hint at dangerous price traps.

We launched a big presale this year with an e-commerce app hosted on Workers, and we just barely hit the 5$ threshold for the paid plan. Did not use more services (other than DNS/proxy) though, so YMMV.