 The theme of the episode — love songs — inspired VanDerWerff to note that such songs " are great for musicals because they pretty much do all of the work necessary in terms of expressing inner emotions and moving the plot forward " . He said that " every song in this episode had a clear emotional and plot purpose " except for the " Love Shack " finale . Futterman wrote that the glee club succeeded in finding and performing " the world 's greatest love songs " , and the reactions from other reviewers were generally favorable as well . 
