American offers a pretty solid product in first & business class on their transcon flights. At least the hard product is great, while the service and food are just okay. American is the only airline still offering three classes of service from New York to both Los Angeles and San Francisco.
These specially configured A321 have 10 reverse herringbone seats in first class. Having direct aisle access from every seat in a cabin on a domestic flight is pretty awesome, though do keep in mind these are the same seats that American uses in business class on their 777-300ERs.
Meanwhile in business class American has fully flat seats in a 2-2 configuration. So the product is more in line with the hard products offered by Delta and United.