By the way, I like EZ Mix, but I use it judiciously. There is one kick drum chain I use often and a couple of background vocal chains that are subtle and good. "Bass with Limiter" is on my frequently used list when I want the bass to be heard but the sub-lows to be carried by the kick. There is one vocal setting for a "Trailer" (movie preview) male voice that actually works surprisingly well on some female vocals and makes the voice jump out of the speakers. In the Mastering tool kit, there are a couple of Master bus effects that work well, although I take them off before sending the track to a real mastering engineer. The one called 60s is a good general preset, and there is one that is subtle compression + lift that is pretty nice. I use these mastering settings for tracks that will be used in public with a live singer to ensure the whole set is balanced and at a good nominal level.
In general, some of the chains sound to me like they suffer from trying to do too much, but, on the other hand, I hear a lot of over-the-top processing on pop vocals. Check out a soloed vocal on an Ariana Grande record. Some of her vocals pierce my skull and the amount of delay is double anything I would ever use. But what do I know compared to her team?
If you find only half a dozen good settings and use them often, the plug in has paid for itself. Using a preset plug in is not inherently less professional than messing around setting up your own plug-in chains, and most of the EZ Mix stuff was either created or blessed by some big name producers.