[Difference between LUS and LAA] 2-Class A321
You definitely made the right choice for this particular itinerary. Just be aware that there are actually *3* configurations of A321 in the AA fleet right now
The LUS one, with no power, no IFE, etc.
The LAA A321T, which is the 3 class that operates between JFK and LAX/SFO
The LAA A321B, which is a 2 class plane on various routes.
I've been on all three and of course the T is by far the best but only operates on two routes. The difference between the other two is not that substantial except for power and IFE, and the overall youth of the 321B planes.