My wife and I are planning our first trip to Europe this coming May, and we're going for 9.5 days - arriving on Tuesday mid-day; leaving early Friday morning the following week. We had planned an ambitious schedule involving about 1.5 days in each of the following locations: Positano, Rome, a wine tour in the Chianti region, Venice, Zermatt, and Geneva. We were planning to fly into Naples and fly out of Geneva.
We hadn't planned to be anywhere near exhaustive; just experience a few cool things in each place.
Are we being too ambitious? Should we cut out some of our itinerary? What are people's recommendations given that we're first-time European travelers and don't want to stress ourselves out, but at the same time I don't know if we'll ever go back to that same area again (probably will check out other European countries several years in the future)?