Went with a group of friends a little over a month ago. There a lot of unique subs on offer, I tried one with a teriyaki kind of sauce to it.
I compared notes with a few of my friends after, and we thought our sandwiches were just alright. The main complaint is that the sauce drenched the bread and all of our sandwiches were soggy by about midway through eating it.
I recommend (to the business) to provide the liquid sauces outside the sub so that this does not happen.