Nothing like the original Planet Sub / Yellow Sub in Kansas.
The staff there were also stoned and forget your order, but at least they knew how to make a great sandwich. It was huge, hot, and tasted great. The Springfield staff are slow and can't remember your order, and then when the sandwich comes... it's not that great. Not as much meat as I'd come to expect, and the meat was terrible. The roast beef honestly tasted like it should have been thrown away. I ate a few bites, threw it away, and just left.