Grats on the Amex 50k offer---there was a hot second where they were offering 60k last month. I missed it by a day apparently. But I used incognito to soft-land the 50k offer like you did.
So far I'm relatively satisfied with the card -- my only beef is that there is this category called "Bars & Cafes" that I've found a few restaurants I've gone to have been categorized as---this is annoying AF and I've had to call a few times already just to get my 4x. And no, I'm not calling about bars--I'm calling about brunch places and most other casual restaurants that my Sapphire card always classifies as dining. If this doesn't get better by the time next year rolls around, then I'll be downgrading or cancelling because that was not something I expected to have to deal with from a card that markets itself as being for foodies.
Also, I hate grubhub so I've been agreeing to order like ONE thing from Boxed.com each month to get back that 10 bucks. (eyeroll)--but hey I'll do it. The flight credit can be done via gift cards (I think just for DL)--as long as that is still possible--this wont be a big deal for me.
Groceries though--I work from home and I pretty much cook all the time, so my grocery spend is like 150-200 a week -- this is where the card has been worth it as I tend to only go to Safeway or our version of Kroger out here and I've never gotten screwed on those points.
BTW--my first charge was the spend ---still have no points even after having paid my first bill already--does Amex sit on them forever or something?
Congrats!!