Iguazú is the perfect place to visit a tropical rainforest without having to leave the comfort civilization gives you.
This city offers the perfect combination of modern life and natural peace.
If there's one thing this city does not lack is the presence of English tourists. So don't worry about the language as everybody speaks English -unlike other areas of Argentina.
Don't worry about people trying to rip you off for hearing your language, because just your accent will be enough in case you don't speak perfectly. Just don't take taxis and by that you'll be saving enough.
Unfortunatelly, many tourists go to this beautiful city just to take some pictures of the Falls and then leave.
But Puerto Iguazú offers incredible places and landscapes and unique experiences.