I tried it the very first day it was available to Google employees, and it was not usable.

Then a few weeks back, I gave it another try and I was pleasantly surprised.

It was insanely good!

A colleague and I have been on-and-off trying to build a C++ binary against specific Google libraries for months without success. Then, Gemini CLI was able to build the binary after 2-3 days iterating and refining prompts