as far as i can tell from the website this is mostly about converting workflows to RIs. what about right sizing or underutilized instances? do you need read permissions from cloudwatch to look at CPU/memory utilization or just the cost and usage report?
I work at a company that started from cost optimization but now offers a platform to manage the customers cloud operations and i only have 1 suggestion - be very upfront about the permissions/data needed for Usage to do it's job. you don't want to start a demo with a big/enterprise client only to find out your permission needs are way beyond what is allowed in that company for outside services