Forget the hype, every manufacturer is going to tell you their product is the best. But listen to the folks who have responded; these guys are users and knowledgeable enough to give a fair and accurate testimonial and they are amongst the forums best and most trusted contributors. Is Eezox better than the old standby cleaners and lubrications? No, not necessarily, but it is easier and performs as well!
Eezox is a CLP so it is a one stop shop for many gun care needs. It doesn't matter if it's the best since "the best" is a subjective call. It works and more and more folks are using it. It seems very unlikely, to many people, that a product which is easier to use could actually work well but it does. Unlike petroleum based oils, the CLP products have lubrications that bond with the surfaces they contact and this is most beneficial in areas where the finish is worn or has been compromised. Plus, as stated before, the bonding effect makes the product build upon itself in subsequent applications so it truly does improve protection the more you use it.
Lubricity is the result of many factors which include applied lubrications but is most dependent, in good designs, on the load balance on the faying surfaces, base materials of these surfaces and the surface finishes. A well designed gun doesn't need much lubrication and CLP products give better protection in light applications than oils. IMHO, light lubrication is best on personal firearms and CLP products will give you just that with both good protection and good lubricity!
I don't use Eezox but I know several people that do and, the only reason I can give you for not personally using it is that I am using another CLP product that has been working for me flawlessly for all the reasons given here about Eezox! I like the CLP concept!
One word of advice though, I would recommend against using other cleaner products with any CLP as other chemicals can and do remove older applications which reduces the CLP overall time developed effectiveness. When you use the special products for lead and copper fouling removal, confine the applications to only those areas where it is truly needed and follow up with a good cleaning using your usual product.