When I first looked at Zapier about 2.5 years ago, as a developer I found it limiting and just not useful compared to writing custom webhooks that I sometimes glued together with cron jobs, etc. But since late last year, Zapier has matured so much I am able to use it for almost every integration I need. It has probably saved me ~100 hours of development time in the past year alone.
I wonder if Bubble might have passed a similar threshold of utility, so that it is useful even to people who DO have good coding skills.