I was happy Johns brought Hal back, but two things I really disliked:
1) Playing up the military/jock/manly-man angle. In the actual Silver Age, Hal was really introspective and thoughtful.
2) Continuing the "greatest GL evar" nonsense. Again in the actual Silver Age, they resisted making Hal that far out of the ordinary for the longest time. He was only occasionally made out to be special snowflake status, whereas most of the time the impression was that he was just another Corpsman. His "specialness" only rally came from him being a bit of a problem child.
I realize #1 is more popular, and that the reserved personality of a silver-age character can be considered boring to some-- but Johns actually *made* him boring.
#2 is pretty hard for writers to resist, but Johns just gave in to it completely. To be fair, this was done constantly with Kyle to try to legitimize him to some fans, and it's kinda what GL books have become.