Activepieces is a great alternative to the more expensive automation options. I'm by no means an expert in this field, creating only basic automations for my clients needs, but Activepieces makes it easy with their integrations and no code flow builder. I find the automations run well with any errors (made by me!) easily found within the UI.

The ease of use and available "pieces" make it great for many use cases

Active Pieces, a Y Combinator business, offers great automation deals. Initially, I purchased 200,000 automations per month for life, and liked it so much that I upgraded to 10 million automations monthly, reducing costs from other platforms.