I like that we can set up our own rules in terms of how much budget goes where when creating campaigns or ad groups.
We have been able to manage multiple clients through Rexrtb without having separate accounts which has saved us time as well! There are some features such as not being able to add more than one campaign per day into an account that could use improvement but overall it's easy enough to get used to using this tool if you're new at running ads online or don't know what your options are out there yet. It definitely helps streamline management so that everything is organized within 1 place instead of searching around trying to find different ways of tracking each client separately.