When flying JetBlue 95% of the time I purchase EMS seats usually row 6 which boards earlier than group boarding. The last 6 flights when I reached my seat there wasn;t an inch of space in the overhead. I've had to go further back to store my luggage. The problem is the G/A and F/A do nothing about customers coming on board with 3 or 4 pieces and then take the entire overhead for themselves. One time a girl sitting in row 7 used the entire overhead for the passengers in row 6 and no one said a word. When another pax inquired why she had so much luggage up there she told him to shut the hell up and mind his own business.
JetBlue is extremely lax in this. If they would just stop chargng/increasing checked bag fees this problem could be alleviated. Just my opinion