EF trapped? Far from it! Personally, I love EF as it feels like your own little cabin when you ave the dividers up on either side. Very private/personal. Also people dont often choose the single seats either side of EF, hence more often than not there wont be anyone to climb over.

Bear in mind that for seats that face each other, you have to speak louder which can be tiresome. I think that facing is good for friends, but side-by-side is best for lovers!