Congratulations on making it through this episode and completing yet another disappointing adaptation. At this point, you deserve a reward for enduring it. The outcome of the battle feels rather underwhelming and the song at the end is honestly one of the most cringe-worthy things I've heard. The supposedly nice view that Issei and Rias shared was honestly just... meh. It didn't really have the impact or charm that the scene seemed to be aiming for. P.S. Just remember that the events of this episode are not canon, so don't expect anything shown here to carry over into the next season.