Yep, these are stats everyone should have to make the transition as fair as possible to creators and users. Our team will prepare some tools to share with you, and we will update you.
Right now, what you can get from Insights tab is: number of monthly users and results. Then in the Monetization, if you switch to Pay per event, you see "average usage cost per 1,000 results". So that way you can calculate how much users spent total on compute on your Actor. So the data is there, just not in a nice way.