Is there anyone who has used the "Paris Pass" and if so was it beneficial? The pass is for transportation, museums, etc in Paris and seems to be a good way to go.
IMO, the Paris Pass is not a good deal because the Paris Visite pass that comes with it is overpriced. You can do better buying just a Paris Museum Pass and paying for transportation separately. Which of several transportation options will be best for you depends upon how many days you'll be in Paris and which days of the week those will be. If you give us that information, we'll make some further suggestions.