I don't think Vibecode can completely replace workflow. For example, Langgraph still need wrting workflow in its software. To conclude, AI cannot absolutely follow my plan, but a workflow can.
Yes I use it for a few workflows for a client. Been using their hosted version since it was dirt cheap (and grandfathered in to that pricing). It’s been very reliable, I would continue to use it for workflow automations now as it’s simpler to reason with than LLM generated spaghetti code.