I am on the Divina for a 3 night. It seems most of the diamond benefits do not apply. Specifically not mentioned on their website but apparently very new change, no specialty dining for Diamond members on <=4 night cruise. :(
So overall I was pretty disappointed in the live music on the ship but it sounds like it was there just not where I could get to it (Syd Normans). I think NCL could do a better job with there entertainment locations. A lot of what was in the atrium should have been moved to a larger venue and Syds was great but it is waaaaaay to small.