The problem
Why this one exists
A system of specialists has one obvious failure mode: you have to know the system before it can help you. That is a bad trade for someone who arrived with a specific problem and no interest in learning an ecosystem first.
Guida removes that requirement. You describe the situation in whatever words you have, and it identifies which specialist is built for it, explains what will happen next, and points you at the setting or the tool you needed.
It is deliberately free, without a monthly ceiling, for the same reason. The route to the right answer should never be the thing standing behind a paywall.