I wanted to like Verminion. I really did. But it's practically impossible as a controller player to win against someone using keyboard/mouse. Controller is so much slower. It's a huge disadvantage. It even makes the Verminion challenges unnecessarily difficult. For no real reward - the one I just completed ended up costing me MGP because I had to try it about 7 times (100 mgp each) for 150 mgp when I finally beat it.

Meanwhile the chocobo challenges pay out 20k + each, and only cost 10 mgp each attempt!