Wow Sootopolis city looked great, just like in the games. Juan was an interesting gym leader with his water show, plus I liked the idea of a 5 vs 5 gym battle. Grovyle getting hit by Luvdisc's Sweet Kiss at the end was hilarious.
What made me enjoy this episode the most was seeing how the animators did Rune City justice by making it resemble its in-game counterpart. I thought Adan's performance was amazing, and I was intrigued that his Gym looked like a mansion. Pikachu and Heigani versus Todoggler and Azumaou was a fun match, too.
One thing that made this Gym match spectacular was the creative liberties that the writers took with the Rune Gym's battle structure. The fact that they added a segment for a Double Battle made this Gym seem much more invigorating from my viewpoint.
Sootopolis City looked so glamorous and we were introduced to Juan, whose showmanship and skill as a fancy battler out-shined anything Misty or her sisters could ever give us in terms of Water type specialists. I liked how this was also another chance to go outside the standard 3-on-3 battles. We get instead not only a 5-on-5, but it started off with a 2-on-2 battle.