Our butler delivered coffee and croissants to us every morning as per our request and was always there at the appointed time. Food is subjective but I can say that our meals were wonderful; I never had anything that I did not like or that wasn't cooked to my liking and I felt that the portions were quite adequate. Sometimes the waiters in the lounge were busy, if so we just went up to the bar and got our own drinks but this rarely happened. All drinks are included on a Scenic cruise and they poured a good one; we enjoy our wines and found the choices onboard to be more than acceptable.
The tour guides at each port of call were some of the best ones I have every experienced and all of the tours were most enjoyable. The embarkation and disembarkation were the best I have experienced - being taken personally to the cabin (with champagne and rose in hand) and shown around was a perfect beginning.
Was it all perfect - of course not. The evening entertainer was great at playing the piano but should not open his mouth to sing. Also, our room steward had to be reminded to replenish items a couple of times.
Are they a 5 star? In some areas yes; in some I would rate them 4 to 4.5 - still very favourable. I would not hesitate to recommend a Scenic cruise and plan to use them again for my next river cruise.