Greetings, I"m an early backer Yay! I would have been sad to miss this. For my first post I'll just say that I have about 150 hours in D:0S and have read far more opinions on it than I care to count.
The list of Pros to the game are substantial in number but the Cons are as well for a player like me. (I won't list them at this late stage).
In short, NWN 2 and KOTOR 2 are my favorite games (still play them and the first installments both) but also like strategy/strategic games of various flavors.
The biggest disappointment for me was lack of a rogue class with the characteristics I've grown to define them as and love. But even more importantly, it didn't satisfy my RPG itch, be it the story, companions, dialog etc. I will replay the game and it deserves a high rating for quality and implementation but it just isn't magical to me like the aforementioned games and others such as Baldur's gate. I actually like the regular Divinity series better in many respects.
PIllars of Eternity looks magical and obviously I like (am an addict that needs help rather) Obsidian games so I am just a tad excited for early release and the finished product. That said, the developers and the game deserve major respect. They have earned it and I think the game will only get better with time, mods etc.
There is room in the world for both games and to those who enjoy them it is win-win.