This itinerary included KL 6671 (BWI-Detroit), KL 6048 (Detroit - Schiphol) and KLM 511 (Schiphol - ROB). Flights were all on-time with early arrivals. Meal services were good, flight crews attentive, entertainment systems from Detroit to Liberia good (although superior from Detroit to Schiphol). Minimal layover in Schiphol. I ordered special meals and they were available as requested.