I don't usually review chains, but since this is the only place in Champana you can get a descent gyros, I'll make an exception.
Their gyros aren't amazing or anything, but will definitely quench that gyros craving. Yes, they are greasy, but all good gyros are -- I like mine with giardiniera. However, it is important to mention that I've had their Italian beef before and it was crappy!
I'll definitely be back to Niro's whenever I'm in the mood for a greasy gyros.