Since 1983, Argentina has had 2 'populist' presidents, Nestor and CFK. Actually, since the coup against Peron in 1955, there's only been 4 total: Peron and Isabel from 1973 to 1976 and then Nestor and CFK from 2003 to 2015. People who don't know much about the history or politics of this country paint it as some sort of hotbed of 'populism' but in actual fact since 1955 it has been ruled far more often by 'market-friendly' governments.
By every objective measure, Argentina's economy grew and standards of living rose during the latest 'populist' period than any other in its history.
GDP per capita:
$2295 in 2002 to $13783 in 2015
Raw GDP:
97 billion to 594 billion
Poverty:
down by 28%
Human Development Index (living standards):
0.769 to 0.820
Under Nestor Kirchner, Argentina had no negative deficit for the first time modern history, from 2003 to 2010. No other government has done this.
I could go on but you get the point.
I understand that these measures don't matter much to expats with foreign sources of income, but the measures taken objectively improved the lives of the vast majority of the people of the country, who have never been rich enough to be worrying about how many dollars they're allowed to convert for their next holiday to the USA, or how expensive it is to buy an iPhone.
The presidents who have received IMF loans were not 'populist'. They were the military dictatorship right after assuming power (neoliberal, left the loan to be paid off by democratic governments), in 2000 (De la Rua, neoliberal, after a crisis caused by Menem, neoliberal), and in 2017 (Macri, neoliberal).
IMF loans are a part of a strategy of neoliberal governments to legitimise austerity measures. They come with sets of demands, like repealing worker's rights, lowering wages, slashing basic services, etc, and they give them a convenient excuse to do so, by saying 'well, the IMF said we have to do it', and the funds help them with cutting said programs and propping up the currency while they do so. Other governments don't take them out.