I imagine this is about as good as pork katzu and curry can get so in that regard it could be five stars. My favorite part of the meal was seeing you could get food from 1-10 spicy level but 6-10 cost extra. I assumed 5 couldn't be that spicy but the waiter warned me against it. 3 ended up being about perfect.
I'll have to trick a friend into getting an 8 or 9 some time. In the name of science, of course.