I had the Zoom whitening done this morning, and within a few hours my teeth became so sensitive and very painful. I have been trying remedy after remedy to try to dull the pain, but nothing has worked at all. My teeth are so sensitive I can't even think straight. My parents both had this procedure done last week and neither of them felt this pain at all.
Maybe tomorrow I will wake up tomorrow morning pain free and think otherwise, but as of right now I would definitely say that the pain and sensitivity are NOT WORTH IT.