I'm seriously thinking of applying for this card and cancelling my American Express Blue Cash Preferred to save the $95 annual fee. I use the AMEX primarily for groceries to get 6% cash back; the Savor would give me 3 points per dollar, worth (according to Ben's valuation) 5.1% (which I would transfer to my Capital One Venture X). I would have to spend over $10k on groceries to recoup the annual fee, which significantly exceeds not only my typical grocery expenses but also he $6000 annual maximum for the 6% cash back on the AMEX. And this doesn't even account for the sign up bonus on the Savor.
I also use the AMEX for gasoline purchases for 3% cash back; however, I can get an equivalent return by using my Hilton Surpass Card (6 points per dollar, valued at 0.5 cents per point).
Finally, Capital One credits points when a transaction clears, but AMEX doesn't credit cash back until after payment is made -- which means that I have to keep spending each month to get the previous month's credit.