I have a flight booked with Jetblue in April. After I booked the flight, I realized that I had forgotten to choose my seat for the flight home so I called them. Believe it or not, I was connected in less than a minute-no long hold time! The very kind woman gave me my seats and then I told her that I had to bring a breathing machine for sleep apnea with me. She noted that on my profile so that when I checked in I wouldn't have problems. I also told her that I often got sick when flying so she noted that, too. I felt less anxious after I talked to her.
A few days later I noticed that my airfare dropped $50/person so I called to see if they would drop my fare. Sure enough, I was connected within seconds, and given a refund. The rules are that you have to use the refund within a year but it is tranferrable to anyone you designate. So far I have no complaints about Jetblue and just hope my flight will go as smoothly!