So it kind of looks like nobody--least not Guy or me, has taught both.
My students are uni students who are very VERY busy--their schedule is like a high school schedule, 7 classes most meet daily. They are mostly studying engineering fields and have tons of projects and homework. English is there last priority. (Though we've collected data from grads to prove it shouldn't be, they get passed up for jobs/promotions if they can't hold their own in English, even people with no degree get the jobs over them if they can speak English.) They know some day they will need English, but they are not very good at thinking ahead, only right now, and right now they have a test in X class, a project in Y class and are failing out of Z class so they do all that before English.
But, they are well behaved--the biggest problem is chatting in Spanish.
The treat you with respect--mostly.
They are interested in knowing you as a person. (This can be dangerous for younger teachers!)
My students have mostly had teacher centered teaching and can be confused by student centered teaching.
Cell phones and ipods have become a small problem, when I arrived in 1998 they were unheard of.
My students have had 2 to 6 years of English before coming to the university, but for some it was so badly done you have to spend the first semester deprogramming them. "I avay 18 years."
It's a big country. I know of high schools in the north whose graduation requirements are higher then ours, so it's not the same around the country.
Hope that helps.