Out of curiosity, how long have you been working as a developer? Just that, in my experience, this is mostly true for juniors and mids (depending on the company, language, product etc. etc.). For example, I often find that copilot will hallucinate tailwind classes that don't exist in our design system library, or make simple logical errors when building charts (sometimes incorrect ranges, rarely hallucinated fields) and as soon as I start bringing in 3rd party services or poorly named legacy APIs all hope is lost and I'm better off going it alone with an LSP and a prayer.
Around 10 years. I also find that claude hallucinates once in a while, but I usually catch it. My main job becomes requesting and reviewing code instead of writing it.
But I don't think it is fair to compare copilot and cursor. I have not been able to gain any significant productivity boost from using copilot (which I have in my Visual Studio proper).
