We took the skip the line guided tour from Naples to Pompei and were extremely disappointed (to say the least). It started with the logistics, the tour description says pick-up point is directly from the hotel, and our pick up point was 0.5 km away and half an hour earlier. When we got to Pompeii, we waited for an hour+ for the other groups to arrive, only then did we go to the long entrance line. There we waited just like everybody else, not skipping any line whatsoever (both in and outside the site). The visit was also shorter than it was supposed to be (probably because of the delayed starting time) and when we got out we had to wait 50 minutes for the ride back. But no doubtfully the most upsetting thing was the guidance itself. It was almost impossible to understand the guide's english, so much so that we searched for an audio guide online. We finished the tour almost as unknowledgeable as we started it and more than an hour late (which made us miss other plans we had for the day). It really ruined our whole experience and Pompei was supposed to be the highlight of our visit to Naples :(