Is the following review positive or negative?

I went in on a whim because the line for Subway was so long and the prices looked so good. I ordered a hamburger with potato wedges and a drink. Everything was less than $5 with tax, fantastic! That said, when I got my food, I was less than impressed. The potato wedges were okay, not really my style, I prefer fries, and if there are wedges, I prefer smaller ones - these were giant - but they were pretty decent for what they were. The burger though, was GROSS. The patty was clearly a frozen patty that was cooked at some point - I'm 99% sure it wasn't right before I ate it though because it tasted and had the consistency of something sitting under a heat warmer forever. The staff was polite, but I will probably not be back to give it a second chance - even at these prices. I'd rather pay a little more and get real food.
negative