Over on the TA American Airlines Forum there are thousands of reviews all over the place with more positive reviews in the average to very good section. However, there are still many thousands in the poor to terrible sections.
I can get a wonderful price for a flight from Boston with layover in Philly then to Athens and the same for return. I can pick my seats without a charge and the flights have good departure/arrival times and short layovers in Philly.
I've flown with numerous other airlines, some with very good reviews and some with so-so reviews. However, all worked out for me, got me/wife to our destinations safely, mostly on time and no problems with customer service or travel mix-ups.
I've never flown with AA so would appreciate some advice.