After dojo: http://www.pokecheck.org/?p=detail&uid=1541404
After cafe: http://www.pokecheck.org/?p=detail&uid=1541448
I don't know why serebii calls it a dojo, the shop looks like a real life gym, and I just tested out the dojo and cafe. Special defense level 4 apparently costs 6k pokedollars to put in 4 EVs. And the speed one for the Cafe puts 20 EVs for 36k. So they're pretty much worse than vitamins, but I guess you might be able to pump stats after vitamins through this like the wings
Edit: Also, you can't beef up a pokemon with max EVs already. That would've been cool.