What does everyone think of this opening, good, bad, somewhere in between?  The main variations are 4.de de, and 4. Nf3 Nd7

Its Sound!

(I could be wrong but...) I believe one player to play this OTB is IM Gary Lane.

it is actually a line in the philidor defence. By playing the Pirc like moveorder 1 e4 d6 2d4 Nf6 3Nc3 and either e5 or Nbd7 instead of the regular 1.e4 e5 2.Nf3 d6 black can avoid some of the tricks white has in the normal line. And with the pirc like moveorder, it gets easier for black to reach the Hanham variation, that black normally can't reach by force. White can still avoid the Hanham variation by taking in the center when black does the e5 pawn thrust, but it usually isn't that big a problem for black.