It is a wine fair. Crazy busy, interesting, crowded. Lots of reps from Vaud and Valais, definitely worth knowing; you can order wine, but they don't hold stocks on premices, so you have to either pick up or have it delivered. Many great producers.
The international part is to me the least interesting; it tends to be the making of big import companies and some smaller privates; in some cases, they may put out for tasting a couple of exceptional bottles (if you are lucky enough to be in the immediate surrounding at the right time).
Food is decent - the concept is not that it "goes well with wines", but that it feeds the tummy so you don't get sick.
Unfortunately, there are also groups of young 'uns that come to get drunk
and down one glass after another
; that is why the entry is raised at 30.- this year.