This is a system that is basically adding missing features as a super-set on another system. Rather than deal with one complex system, you are now dealing with

This is a system that is basically adding missing features as a super-set on another system. Rather than deal with one complex system, you are now dealing with a complex system within a complex system. For this to actually pay off for you, it needs to cost less to run this super-system than the base system. Without any numbers (quality, reliability, bugs, etc) to speak to, there's no way to know if using this system will result in a better outcome. All you can do is hope that the base system is such a pain in the ass, and the super-system is so good, that somehow you come out on top.