And me. We're (hopefully) going to Pompeii this year, after having planned to go for years and always having something stymie it.
We went about 10 years ago. I had wanted to go for ages. It is really interesting, and you could get a tour with a guide if you wished when you arrived. We just went round ourselves, but in reflection it would have been good to have gone on the tour too. It is exhausting though as it is so big, and there is no way you will see it all.
Wear good comfortable flat shoes and a hat. We saw a woman there with the highest stilettos you could imagine walking around. How she didn't break her ankle I have no idea. There is also a cafe inside which is very handy as you can buy water and there are toilets, albeit not that nice (well, when we went it wasn't, might now have changed).
We took the train from Sorrento, it was around £2 each both ways, and you get given a map so you can see when the station is coming up for Pompeii. We chose a cloudy cooler day as I don't think we would have lasted the time we did if it was too hot. Apparently some of the houses are not always open, so if you are interested in any in particular, ask when you buy your tickets what places are open that day. Your feet will thank you later.
I'd love to go back, and would also visit Herculaneum as well, but we ran out of time/days, and always said we would return. Capri is lovely too as is the Amalfi Coast.
I am not jealous, honestly