What are the advantages and disadvantages of tally getting the 'pretty' surgery

The advantages are in summary the ability to conform and be appreciated within society. The society Westerfield writes about is extremely superficial, obsessed with outer beauty. The surgery would grant Tally acceptance, increased self-confidence, and a luxuriant lifestyle amongst the other Prettys.

However, the disadvantages are abundant. Tally, through taking the surgery would lose a great deal of her intellect. In addition, she'd lose certain memories and her creativity would be impeded.