I’ve had good experiences using it, but with the caveat that only Gemini Pro 2.5 has been at all useful, and only for “spot” tasks.

I typically use it to whip up a CLI tool or script to do something that would have been too fiddly otherwise.

While sitting in a Teams meeting I got it to use the Roslyn compiler SDK in a CLI tool that stripped a very repetitive pattern from a code base. Some OCD person had repeated the same nonsense many thousands of times. The tool cleaned up the mess in seconds.