The "lounge" in the "E" gates area is not a Star Alliance lounge. If you have several hours and are Star Gold use the Swiss Senator or Business lounge near the "A" gates.
If you buy a drink or snack in the duty-free shopping area keep the receipt to get 50% rebate on drinks and food from one of the gate bars after security check.
Not a great variety of food options. Especially not at reasonable prices. Most of the airport is given over to designer/high end luxury stores. Wifi is limited. Wouldn't recommend for a transfer.
Food and drinks are fu**ing expensive (at least in the duty-free area), the other things are just a little cheaper. Free device chargers all over the building, though.