One of the things I don't like about Neverwinter is that a character's power level is an extremely complex construct and made up of way too many different parts. My character sheet lists more than forty different stats, and even though not all of them can be found on gear, that is only the beginning.
There are also your basic D&D attributes (strength, wisdom etc.), paragon paths, feats (talents), powers, boons, on-use powers on artifacts, not to be confused with artifact powers on your main- and off-hand, enchantments, overload enchantments (totally different), armour kits, active and passive bonuses bestowed by certain companions, active and passive abilities granted by certain mounts, insignia bonuses from mounts (even though the stable system has been in game for over a year, I literally only learned how these work the other day), and I wouldn't be surprised if there was more that I'm forgetting right now.
I pretty much ignore half of this stuff to be honest and it hasn't really hindered my ability to complete basic quest content. But there is huge potential for min-maxing here, creating a wide gulf between those who can be bothered to figure it all out and those who don't. Plus every time Cryptic adds a new system to the mix, I can't help but suspect that it's mostly meant to give them yet another thing to sell in the store or to put into lockboxes. People are less likely to cry about pay-to-win if they can't even keep track of all the different ways in which you can increase your power.