Workers is compute-on-demand and particularly only pay what you use. Especially in the current days, something like Workers is infinitely appealing if you don't want to manage or pay for a dedicated server, assuming the service you want to run can be completely hosted (or a replacement vibe-coded) for the Service Workers API / deployed to CF's platform.

You also don't pay for actual data transfer, so the billing is overall simpler - AWS and GCP have similar per-request compute options, but every part of the platform has extra fees (like per-gb data transfer billing, sometimes you need a VPC to interconnect services, secrets being an extra charge, etc).