just had a wonderful round trip to Boston in First, outbound in the new first, inbound in the old. The advantage of the new first is the privacy of the cubicles, but since on both flights we had the cabin to ourselves that wasn't an issue. The service and food were excellent. The trolley of starters is an excellent idea, the cheeses are excellent and the wines are great.
Compared with BA the food and service is vastly better.
I presume that Swiss don't do op-ups to first hence only 2 of us in the cabin.