I’m building an ERP system, I’ve already been at it for a 3 years (full time, but half the system is already in production with two tenants so not all of my time is spent on completing the product, this revenue completely sustains the project). AI is now speeding this up tremendously. Maybe 2x velocity, which is a game changer but more realistic than what you hear. The post AI features are just as good and stable as pre AI, why wouldn’t they be? I’m not going to put “slop” into my product, it’s all vetted by me. I do anticipate that when the complexity is built out and there are less new features and more maintaining/improving, the productivity will be immense.

I'm not discounting your experience, but purely from experiment design, you don't have any sort of pre/post AI control. You've spent 3 years becoming a subject-matter expert who's building software in your domain; I'm not surprised AI in it's current form is helpful. A more valuable comparison would be something like If you kept going without AI, how long would it take someone with similar domain experience who's just starting their solution to catch using AI?