Hello,
if your baby is not having extreme difficulty breathing i would not do it. we did it twice for out baby, the first time she was almost 2 and she did great. keep in mind once you performed the surgery it does not mean their palate would no collapse again. the second time she was 8y/o and it was a complete nightmare for us, bc her airway was very susceptible she got pneumonia and she was under intensive care for almost 2 weeks (ventilator, oxygen, antibiotics, etc) we almost lost our baby girl.
if your baby palate is not obstructed to the max. I would not do it. it seems a lot of friends here did it and they are happy with the results. I am sorry to give you my negatives but i felt i had to. i don't wish anyone to go through what we went with our baby...
wish you luck