I have placed my deposit for Best of Italy in 2018. I will stay at least 2 extra nights in Rome. I would love to go to Pompeii.
It looks like the best way to do that would be a train from Rome to Naples, then a transfer to a train from Naples to Pompeii.
Walks of Italy has a round trip tour for 15 on a small bus/van that includes a trip to Positano (13.5 hours). I have also seen similar tours offered by other companies.
There would be significant value in being escorted and not having to worry about being on my own. I haven't been able to find enough reviews of these trips to get an idea what the specific disadvantages are.
The question: Is traveling that far worth it? Are you familiar with tour companies that make this trip? What do you suggest?