Paris Pass

Depends
You have to do the math according to what you will use it for

Absolutely not! It is grossly overpriced, with half the cost going to the promoters pockets for a parcel of discounts on stuff you will never do.

Everything included is easily available on site. AND the transport pass is the absolutely most expensive way to buy transport in Paris. It is never a good deal.

Definitely not worth the price. Just purchase the tickets you want from a site's own website. The Paris Pass never gives you sufficient time to make purchasing it attractive.