This Week's Glee Episodes featured original songs, as in "songs written only for the show".
All the previous songs from Glee (the CDs are available and awesome) were cover songs, and I liked many of those versions better than the initial version.
Let's see if we'll see more original versions in later episodes.
I liked the thing between Rachel and Quinn, and even better, Rachel's speech at the end.
Just one small itch, this episode could have been splitted to have two episodes with more drama because I think it still lacked some.