It was a good episode, but kind of a letdown in terms of ending the series. Fortunately, Trigger managed to avoid going Gainax and having everybody congratulate Ryuko or have her get cut into 666 pieces by Mako when it turned out that she was a demon all along, and at least gave something of a conclusive ending, but it was still rushed as hell. A few more episodes would have been good for the show, since what we got falls pretty far of what it could have been. 

Also, Super Saiyan Ryuko was silly. Really would have been better off as a Satsuki/Ryuko double team, if they could have found a way to do that believably. 

At least Gamagoori was fucking metal. If this episode didn't make you love Gamagoori, you have no soul.