Im starting a thread to make it easy for people to get the info they want. Yes Uber works from GIG and yes you should absolutely take it and you will pay about half the price a regular taxi charges or way less than those ripoff places charge that hound you coming out of customs.

To get Uber you need to go to the second level, the departures level. There will be signs on the floor pointing you where to go. They say “taxi” and “carro particular”. Follow them. They lead to one of three doors, D, E and F I believe. Just look above the door to find out which one you are at. Once there order an Uber. It will ask you which door you are at and give you the options to choose from. That’s it.

I paid for 41 reais for a ride to copacabana at 830pm and it took about an hour due to heavy traffic. My wife got one today at 1130 am and paid 40 and took 30 min. If people want to post what they paid to other neighborhoods I think that would add value so people can budget their trip properly.