Sure. It, and products like it such as Salifert all in one, have pros and cons relative to two part systems.
The main pro is convenience.
The main cons are a slight pH reducing effect (likely too small to easily see), cost, and complications when trying to use it in a system with automated testing and dosing system.
Like a two part that contains extra trace elements, the amount they add is tied to the calcification rate and thus cannot be adjusted separately in a way that might be more suited to your systems needs.