Never really thought to throw my toys in the forums here over what would cause me to reject D&DN but after playing through the Isle of Dread and the test adventures I have found one.
A deal breaker for me is something that would cause me to reject D&DN outright. Before I started testing I had the following deal breakers.
1. 4th ed reprint.
2. Spellcaster power levels similar to third ed.
3. DM headaches a'la 3rd ed.
The D&D skills or ability checks or whatever you want to call them do not work that well. A DC 16 check which is supposed to be hard is almost a guranteed success when 4-5 peopel are rolling it. Skill mastery and mighty exertion also totally ruin it.
I admit I was spoinled by Star Wars Saga which had a great skill system which was basically 4th eds one but with a revised skill list and the way skills interacted with class abilities. Pathfinder uses and improved 3.5 skill system, and whatever problems 4th ed had I don't think the skills were a major part of it (except maybe +5 skill focus and +5 being trained being to high maybe +3).
Maybe they are trying to implement a pre 3rd ed approach to the game but even their own system doesn't work very well. Not sure how many pre d20 players are left and I don't know if they actually care about skills at all.
Why can't we use 4th eds skill system (tweak numbers if needed) with a revised 3.5 skill list? Skill focus gives you advanatage on a skill of your choice. If it isn't broken don't fix it. Insert some comment about reinventing the wheel. It would be a nice evolution of d20 and I don't think it would upset to many people from the 3rd ed and 4thed camps. It might upset the pre d20 players IDK.
Put simply I have a large pile of 3.5, Pathfinder and 4th ed material I can use. All of which can be tweaked to something I like better than expertise dice wrecking the weak at best skill system. D&DN is kinda fun but it just seems bad in this regard.
Fear is the Mind Killer