Flew TPA-PHX-ONT on Fri and return today. Seemed to go fairly smooth. I heard one lady behind me complain, but it wasnt about the soda, she said she could see paying for that, but she thought the first bag fee was bad since you have to take clothes with you. Other than that, I didnt hear or see anyone in the couple rows around me have a problem paying if they wanted a drink. We bought a can and got two cups since we dont usually drink the whole can. Did have the FA on one flight advise customers to write if they didnt like the new charge.
On a side note, the hotel we stayed in had free water (tap), or a small 16oz bottle in the room for $3. The larger 32 oz bottle we bought in the lobby was $6. Not that I like spending that much money for water, but at midnight with no car, you pay for it if you want it. $2 for our 16 oz bottles doesnt look so bad now. 😉