The $300 credit is easy to use, much more so than Amex as it doesn’t require selecting an airline.
There is no authorized user fee and AUs get their own priority pass card. For a net $150 (after credit) you get a free night at a category 6 hotel.
the free authorized user with PP makes it great for 2 player mode if you don’t have too many premium cards between you and your spouse/child/etc.
I've also used the $100 Ritz/St Regis credit (on stays 2 days or more) a few times.
but without the $100 discount it won’t see any spend from me. At least previously I put the flights for the $100 off on it. Now it’s purely a benefits sock drawer card.