I just read the 5-issue miniseries. It was alright. Nothing spectacular. I did like seeing Nate come back, and the final scene was really well done ("You don't get to do 'one day'..."). Not sure if I liked the ambiguity of what happened to Nate though. I suppose it doesn't matter; if he could survive Onslaught surely he could survive physical death. His powers are there somewhere.
Maybe this was just a test be Marvel to see how a revived Nate Grey would be received.