As long as carb is controlled, my doc has no retrictions on coffee, carbonated drinks, alcohol, sex, and all the other stuff I can't live without!
I did plication and band together mid-July, and after a couple of weeks I started drinking coffee again. At first I had a lot of bloating (not from coffee) and the coffee necessarily did not make it any better, but after a month or so, I was good to go. I drink at least 3 cups a day. Most days one cup is Strbucks' Americano (basically two shot of espresso but I add half and half (almost 0 carb) and 1/2 packet sweet n low). No carb and very satisfying... If I want to splurge, I get a sugar free vanilla latte with soy milk (has less carb than non-fat regular milk). Even before my surgery I would never get the high carb drinks somehow. As mentioned, my doc is really big on no carb (only 30 gr. "incidental" daily), and fat, calories, etc. is fine as long as Protein intake is high... So every now and then I do add a bit of whipped cream (again almost 0 carb) on the top, which makes it even better... And I have been losing even better than planned, so I must be doing something right )
As for carbonated drinks, it took me a bit longer to be able to drink them after surgery and enjoy too. I can drink diet carbonated soda now just fine, but I pour over lots of ice and let it sit for a minute. I never drank non-diet soda before the surgery, so no compromises there. I definitely crave soda much less than before surgery somehow. Trying to stick to Water for the most part.
Good luck, and drink (coffee) to that!