I like that it's so easy for new people who don't have much experience with GRC tools.
It also has an intuitive interface which makes using this software very simple. The only thing i dislike is how slow it can be sometimes when loading information into certain screens (which could just mean my internet speed). This isn't really something specific to Compliance Map though - every tool out there suffers from having too many features at once! We use CM because our organisation requires us all to adhere to strict governance rules.