I have flown from BWI to BZE with no problems (I'm pretty low maintenance). The only issues I had was I had to go to CLT because there was nothing direct. Which makes senses seeing that CLT is a big hub for them and not alot of people are flying to BZE from BWI. The total time for me was about 7 hours which made for a long day. If you are flying JetBlue then you probably won't see much of a difference when you fly AA. Do it and don't worry about the horror stories. Do it and come back and write a trip report for us.