Radio was one of these films that I'm glad I saw, but wasn't particularly easy or fun to watch. I think it's an example of Hollywood using their power to tell an important and non-flash story. Like the coach said in the movie - "life is about priorities," and this film is a reminder that people should be at the top of the list.
Eternal Sunshine of the Spotless Mind is also a film that wasn't particularly easy to watch. Instead of being about a difficult subject matter, it's trickiness lies in that fact that you have to sort out a mixed up time sequence and dream versus reality. But, as romantic comedies go, it was so refreshing not to see another variation of When Harry Met Sally (not that there's anything remotely wrong with WHMS).
I'm not even sure yet that what I took away from the film was even intended -- but I'm not sure I care. It was thought provoking, which was good enough for me.
So, they were both decent movies. Movies that weren't just Hollywood fluff (well, Radio is a bit of fluff - but give 'em a break, it's a tough story to tell). I'd give them an 8/10 or something like that.