Came in on 3/7 to get an interior detail, and they did a fantastic job. I have an 2005 Cobalt, so I know not every spot and stain is going to come out, but the folks working there left it looking amazing.
I understand that it's their job to up-sell packages and whatnot, but when the gentleman I spoke with told me what their extra services were (I ended up not getting any extras anyway) I never felt pressured to buy them, or that I was being tricked.
My one complaint is that whatever product was used to clean/shine/detail my steering wheel left it feeling slimy and grimy the next day. I was peeling off little chunks and flecks of something.