I did like how Smee came up and it took me some time to recognize the famous red cap/striped shirt. I also recognized the actor being the guy at the cafe in the tv show Eureka. It took me some time to see that.
I did catch the reference of the library where Belle is now working at - the same as the Disney's Beauty and the Beast animated movie.
I actually like the fairybacks about Rumple. I guess with the flashbacks being of fairy tales origin, it is easier to play with continunity since all of the events occur in "medieval" times. I would like to see more of the Ogre Wars though.