I remember taking a SwissAir flight from Mumbai to New York via Zurich. This was some years ago. My memory of the flight always brings very pleasant feeling.
From the ground to the air we received a very warm welcome and personal attention. The Air Hostess were very cheerful and took proper care of the passengers. I remember that on returning back to Mumbai the first thing I did was to send an appreciation letter to Swissair office.
Swissair flights are quite safe and the cabin attention is meticulous. However this was what I experience many years ago. I am not sure what is the situation today. But I hope it would be as good or better.