Yup, credit card, debit card, Revolute card, boarding passes, tickets for X-Y-Z all in my Apple wallet. I thought that I would never use it but it's the handiest of handy things.
I always travel with my old iPhone thrown in the bag. Both phones are on the same Apple ID and backed up via the iCloud. Whatever is in the wallet on phone A is also on phone B. This SHOULD stop anyone asking 'What happens if you lose your phone'?
I have the two phones too, for exactly the same reason. To which I can add that one is buried away in the cubbyhole on my 1600 and I can’t be arsed to get it out. I am now thinking that I might get myself an Apple Watch and make payments that way.