I don't know who thought Cassidy's voice actress was worse. She sounded exactly the same to me. It was great seeing Butch and Cassidy again.
I wasn't sure what to make of this episode going into it, but I ended up liking it a lot. I was apprehensive about Scott, since he seemed to me like the annoying uncle from out of town who keeps showing up unannounced at family gatherings. Luckily, the way they dubbed him made me like him after all. At least he didn't bomb with me like Harley did. Agatha was pretty interesting too.
I LOVED the new motto.

This was a really great episode for Jessie, James, and Meowth. I liked how Jessie thought Antarctica sounded like a nice place to go. LOL I also liked the confrontation between Jessie/James/Meowth and Butch and Cassidy. Interesting that Butch and Cassidy are still working with Professor Nanba. I often have trouble keeping straight which Team Rocket scientist (Nanba or Sebastian) was from which Master Quest arc, and it took me a moment to remember Nanba was from the Lugia trilogy. Nice continuity.
The ending of the episode was great too. At least Misty's just around for a couple of episodes, but I did like Pikachu when he saw her again.

Max showing up at the end was nice too. The parts where the twerps split up was touching, too. At least we'll see May again next week.
Overall, 9/10. I'm eagerly looking forward to the return of all of Ash's left behind pokemon tomorrow.

I miss Bayleef, Cyndaquil, Noctowl, Totodile, Muk, etc. etc. etc.