Not sure about everybody else, but I think this looks like a great card. Haven't had any citi cards because they are pretty weak reward-wise. I don't want/need the rotating category hassle. I need to set up charges and autopay and then forget about it.
Grocery stores. (mastercards don't work at Costco...)
Restaurants. (already have 4% cashback savor card and spend more than $500 in this category irregularly)
Gas stations. (have an electric car [see below], the gas-guzzling truck stays parked, and use a visa to fill up at Costco)
Streaming services. (if you spend $500 month on netflix, disney, hulu, hbo, you have other problems than cashback???)
Drugstores. (hsa/fsa ...)
Home improvement stores. (Great backup category for when I get a project)
Fitness clubs. (wow, even equinox isn't $500 a month, troll category to make the list look big citi?)
Select travel. (spend more than $500 but not every month, ticket prices vary so much rather use a better travel reward card).
Live entertainment. (maybe if I purchased broadway/concert tickets each month, but I already get 4% on my savor in this category which I don't use)
Select transit.(DING DING - we have a winner!) Here is what I found - **Select transit is defined as car rentals, ferries, commuter railways, subways, taxis/limousines/car services, passenger railways, bridge and road tolls, parking lots/garages, bus lines and motor home and recreational vehicle rentals. It also includes merchants that sell electricity for charging an electric vehicle.
So I easily spend a few hundred dollars on rental cars every other month (probably more now that you can't get a rental car). I'm spending at least $25 monthly on bridge and highway tolls. Now that it's safe to ride in an Uber/Lyft to the airport and short trips another $100 month. Finally, instead of gas, my supercharger bill can run $50 a month or so for the electric car. Plus this would come in handy on the occasional rail, subway, mass transit trip and I could pretty easily get close to the $500 without going over/under. I'll update flyertalk after a few months of use to confirm they actually pay these categories.