Hi
Yukonprince. You may find the LX F lounge a bit of a let down after
The Wing. And the latter does have baths, but no duckies (apart from the occasional passenger - sorry Anglicised-slang - or the variety you eat in the restaurant next door). The Wing is a cut above many other airline lounges around the world: not quite equivalent to the LH F terminal, but not far off.
As for Zurich, my advice would be definately head into the city, it's a short train ride away. Head down to the lakeside for a wonderful walk. The main street connects the bahnhof and the lake. Some decent dining options too - many of them quite expensive - or for something lighter, a bit of cake and hot chocolate.
Discounting the car transfer, the LX F lounge is really nothing to get too excited about. My recommendation is that you use your time in Zurich to the max. It's a very civilised airport and I'd be surprised if your trip from check in to lounge takes more than five minutes.