I haven't lvl'd my bard yet but I've mained it since 2.0, this time I decided to run gnb but that's besides the point, anyway....
I did try out a rotation on a striking dummy to see how it felt even though it's still 70 and the only thing I have an issue with is the emp arrow CD. If it was just a little less than 15 sec it would feel alright but that 15 sec cd doesnt sit well with me since songs are 30 secs and you would usually use it right when you transition songs and around the 17-15 sec mark on the song, but with the cd it makes you wait till the 15-13 mark pushing it further away so you might only use it once for a song which I guess doesnt matter since the third song would be army's.
Sorry if I don't make sense, I'm not a theory crafter or anything. I honestly wish they didn't make it an ability and left it as a ws that didn't share a cd with anything but obviously would have a shorter cd depending on your ss.