This was an okay filler. I thought the Teddiursa was cute but evil as well. I loved the battle between Chikorita and Teddiursa, it was cool. I thought it was cool that wonce Teddiursa evolved, it wasn't so cute anymore. Team Rockets reaction to Ursaring was classic! Ursaring grinning evilly in the end was a nice way to end the episode.
I rate this episode three stars out of five. They could've made it more realistic, I'm sure Misty won't believe a Pokemon she just met over one she knew for a while, despite the fact that Teddiursa was cute.