The rebalancing has done wonderful things for gym diversity in my area! Before, it was always, always the same 5 pokémon species. Now, you see all kinds of pokémon, and my pet vileplume sometimes even holds the top spot for several hours before a dragonite tops her.

Perhaps it will get boring again once everyone powers up their rhydons, but... fingers crossed! I love having to look up the type advantages to battle a pokémon that I don't know well. :-)