Folks, SR opperates a 2 class A330 on this route, thus making the points about the MD11 and the 2 vs 3 class planes moot. The lounges between the airlines are pretty standard. There are First class lounges in ZRH, but you have no chance at using them from Boston, since both Qauliflyer flights dont have F. They have C class lounges and travelclub lounges. Often, many C travellers can get access to both C lounges and Travelclub. It makes for an interesting decision. AT BRU, definately the Travelclub, at GVA or ZRH, the least crowded is the best. Any way at Boston dont forget your pass to the CRC. I know that they arent together, but SR same day travellers can still use that lounge, since SR and Sabena still go from terminal C. Have a good trip
Ps. I think there will be more flights to more, smaller destinations in Austria from ZRH