The result is that you only get impression data and there are a lot of things you can't know about your traffic.
Many of the other solutions say they don't require consent but I think there is a lot of untested ambiguity here. Many of the tools store and display information like "OS", "Location", "Screen Size", and the like. These values, when combined, can be used as a "fingerprint" to identify a user.
I wanted the data in my solution to be so narrowly focused that not even a public log could be used to correlate data and narrow in on a specific user.
I hadn't considered a CLI to the results but I like that idea.