Yes, it was definitely an episode second season worthy. I abosolutely adored the cover Yui played at the start, I could've listened to that for a good while longer; but being Yui that is playing, I should've known better.
Anyway, I like the OP and ED. Better than what the first season gave? It is completely dependant of what type of music you prefer. Personally I prefer the new ones, but that may simply be because they are just that... new.
Note: Yui could be a freaking bombshell if she dressed or did her hair like she has it in the ED; it was a ridiculous change of appearance, then again I could say that about all the girls; but she really stands out in improvement.
That said I'am looking forward to the rest of this season.