the transparency piece is the one most people get backwards. clients don't want more reporting, they want to know whether the thing is on track and what changes if it isn't.
most reporting shows activity because activity is what's easy to count, and that's the thing that quietly kills trust. the client watches the work go up and the number stay flat, and now every report is evidence against you. what holds up is one number you said you'd move plus what you learned that changed the plan. shorter, and much harder to write.