I've hated the Battle Factory ever since it's introduction in Emerald, so I wasn't looking forward to Rentals in PWT, but once I got to it, I had a pretty good time with it. Or at least a better time than with the Factories...
- Since it isn't based on streaks, you can just quit out if you get crap pokemon without repercussions. - Because you don't have to save every time, getting a new set of rentals is but a few seconds away. - With just 3 matches, it doesn't take too long before giving it another go with an all new team of rentals.
Only downside is the inability to switch out a rental at the end of each match, but otherwise, it seems alright.
Mix Master on the other hand... Ugh. I have to intentionally nerf my Garchomp just so that I can defeat it if it gets chosen. And even then, I end up losing.
EU = Europe = Continent US = United States = Continent - legendof