We always leave Ecuador when Carnviale is taking place. We want to see SA, and this year it was Uruguay, Iguwazu Falls, Buenos Aires. Uruguay was lovely, both Montevideo/Colonia were great, I could live in Colonia! Our tour in Colonia was Private very impressive when one on one!
The Falls are definitely a spectacular sight, however I think that the Argentinian side is much better with the 3 walking tours, Brazil better views but very little walking.
We liked the fact that all of our hotels, transfers, some air/boat transportation was taken care of as well as knowledgeable guides. All of the guides, drivers and staff were very helpful, friendly and accommodating.
I unfortunately misplaced by cell phone after the ferry to Buenos Aires, I thought it was in the car, once we got to the hotel we called the Emergency Number (it was a holiday) someone answered contacted the driver and it was lying on the floor. Thank heavens, the driver returned 4 hours later with it, and he got a nice tip! Thank you.
Nothing to do with your company or trips/guides only airport related.