Problem w TAM is there aircraft are hit & miss. I flew in the 330 in F & it was a very nice flight. 1 row, 4 seats in F w very comfortable mini suits. I walked back to C a few times & it looked fine. But taking the 767 luckily only from GIG-EZE I thought I was in a time machine. Didn't look anything like the 330. Ive heard the 777 are the best for C w TAM but I have not been in one. I don't think that aircraft has an F class so C is upfront