Yay! How's the progress looking?
I've invested a lot of time in my Join Avenue (now called SHB Avenue). It was boring, tedious, and took a long time, but my work finally reached fruition about two weeks ago. I now have AT LEAST one of each type of Dojo (I have two Black 2 Dojos, two White 2 Dojos, one Black Dojo, and one White Dojo), and they're all fully leveled up.
Using them in the correct way, I can now have any Pokemon fully EV trained in 5 minutes or less.
It took a long time, but it was worth it. It's also quite expensive, but beating up the Athletes in the Nimbasa Stadiums and sweeping through the Elite Four while holding an Amulet Coin quickly earns the cash back.