In two words? Cautiously optimisitic. Mike Neal may have been a bit of a reach, but at least he's a reach with a lot of upside. His physical gifts are undeniable, and he does have a nice bit of pass rush skill to him as well. But the problem? He's undersized for a 3-4 DE. And he might not have the arm length to disengage blockers.
I don't exactly hate it. It's an inspired attempt at developing more pass rush. But I am worried that he will go the way of a Patrick Lee in that he won't be on the 2011 Packers.