My first thought was...
"Dang, Greg certainly sounds different..." 
Everything about this sounds top-notch.
The vocals, guitar, and entire production is excellent.
Lyrically excellent as well.
Personally, I'd have liked a rougher voice and a more up front vocal - only because I think the lyric seems more suited to that. As it is, the vocal is "pretty" - everything is lush and smooth, which is a bit at odds with the lyric.
But that's a personal choice.
Really nice!
