We really enjoyed our tour with pleasant and enthusaistic Natalia. Her spoken English is quite good. The itinerary called for time in Pompeii followed by Positano and Sorrento but, with today being a free day in Pompeii, Natalia had the foresight to reverse the itinerary. This turned out to work well as the traffic to Sorrento and Positano was not bad first thing in the morning, whereas returning at about one o'clock the inbound traffic to those towns was much more significant. Similarly, the afternoon crowds in Pompeii were manageable and (per the local guards) much better than during the morning crush. Natalia's thoughtful planning made our trip more enjoyable and allowed us to see more. Do consider how to balance time in the towns versus in Pompeii. You could spend an hour plus in shops in Sorrento but perhaps you do that on your own and spend time with the guide more effectively.