If those on FT are to be believed, it seems like the GfL were basically just a more exclusive UC! If that's the case, then I'll gladly take an NH *Gold lounge over the exclusivity of the GfL any day! Certainly the introduction of the Polaris lounge at IAH will make it a huge improvement over the current situation and IAD. Also, I suspect the LH and TK lounges at IAD were significantly better than the GfL at IAD (albeit with less exclusivity).
-James