We had a week's worth of TS and CS and I can't say we hated any of our meals, but some certainly stand out more than others. Our two worst meals were Cosmic Ray's (the chicken tenders are like eating erasers), and surprisingly, Ohana's. The best part of that meal was the bread and salad. Everything else was overly sweet, bland, or in the case of the meat, overcooked. The service though was excellent.
Mama Melrose. Ew. Food and service BAD.
Also, Le Cellier...but is wasn't bad...just not all that considering the hype it gets.