Was shopping in the Stockyards Village, and a friend wanted to try this new place. The other reviews so far are bang on - messy but it's for a good reason. The large sandwich was very generous filled with steak, and the meat was very flavourful. It's not cheap (~$14 for a 12 inch) but I believe you get what you pay for, and it was worth it.
We didn't top up our sandwiches with different sauces because for our first visit, we wanted to be able to really taste what we were getting. The sandwiches were delicious without any extra sauces. (One order was Philly Cheesesteak with provolone, peppers and onions; the other was the Triple Cheese with onions and mushroom.)
We ate in; while it was not busy when we ordered as it wasn't meal-time (~430pm), the tables could've been better cleaned. And by the time we left, there were a lot more customers.
The Stockyards Village is still going through some growing pains, and never too busy, but I hope this new place is successful. More importantly, I hope that their servings remain as generous as this first experience when we visit next time.