2016 update: the cookies have gotten much better.
I used to eat here because I lived super close and they could get a delivery to me within 10 minutes. When given any other option I'd rather get subs elsewhere. I find Silver Mine to be much more bland than any other place and the cookies are always hard. On the other hand, the bread is quite good and so is the chili. Unfortunately the chili is a little over priced for what it is. If you're close and drunk, definitely go for it. Otherwise go drive some where else.
The staff is always very friendly though. I haven't had a bad experience with a single person in the 4 or so years I got food from here.