I can't really improve on Katie C.'s review, so I'll just echo it ... this Mickey D's is definitely grimey and questionable (I don't think it can help it much, what with the area it's in).
The food though is inexcuseable ... if you're not getting something like coffee or a McFlurry, it's not worth it. Find another Golden Arches if you have the need --- you can do so much better!