Compared to what? I personally find it much more convenient that my non-Apple mobile phone works absolutely everywhere which has an NFC reader without a specific negotiation between a bank or merchant benefiting only Apple.
I find it convenient that your NFC phone works that way, too.
I'm the person sitting in the car across the parking lot, staging a pre-play attack against your NFC device while you are doing your transaction, because there's not a one time cryptographic nonce, like in the Apple Pay system, which would prevent the attack.
That's me waving at you now.
Yes, your latest purchase is going to show up twice on your statement, and the amount deducted twice. Thanks for your contribution! You can take it up with your merchant when the bill comes; your money is already in a bank halfway across the planet.
By the way: I also plan on an attack on the chip-and-pin system at the same store, if you switch back to using cards, but I'm going to have to actually sit down and case the joint a bit, before I decide which of the 9 identified (so far) ways to hack a chip-and-pin transaction.
Don't you wish you could go back to the days of the old fashioned skimmers, where instead of you eating the losses (because "the new system is so much more secure"), the banks and credit card companies had to eat them?