We spent almost 4 days in Mendoza and there were still so many things to do. You can use the city as a home base to go around to different locations.
After the trip in the over touristy Iguazu (still highlighting again, it is impressive!) we headed to a far less traveled area of Argentina: The North.
I went a few years back to Iceland the land of waterfalls and so I had to ask the question:, is it worth it to go all the way to Iguazu for a waterfall after seeing some many. I got the same clear answer from everyone: YES!!!
Now post trip, if you have the same question, stop questioning JUST GO.