Edit: reading more, it looks like that rate is only for purchasing travel through their site. Not worth it.
I've toyed with other cards that give higher rates, but those that I've looked at are always for restricted categories.
The usual cash-back card I point people to is the Citi Double Cash 2% flat with no annual fee -- didn't realize the Fidelity went Visa!
I'm always super impressed with the speed that the notifications come through when I'm checking out somewhere. I'll get a notification on my phone over a flaky 4G connection before the CC reader pops up the 'Approved' screen. Lot of computers talking to each other to make that happen...
Similary when my card was canceled last night after the fradulent transaction I got a notification before I even got off the phone with the fraud agent that the replacement cars number had been added to my Apple Pay. Pretty cool!
5X rotating bonus categories on Freedom.
5X airfare on Amex Platinum.
3X travel and dining on Sapphire Reserve.
1.5X non-bonusable spend on Freedom Unlimited.
I haven't averaged my return but its, uh, high :) I feel better about the time spent since its sort of a hobby.