Income tax is 30%, if you earn over a certain ammount everything over that ammount is taxed by 50%. We also have a 25% sales tax and all kinds of other taxes and fees I am not to aware about. Like the real estate tax(you pay a ammount each year depending on how much your house is worth).
The swedish economy is very strong so its not a unsucessfull system.
I like studying and getting paid for it
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Offcourse you have to pass 75% of classes to continue to get money and loans. If you dont manage that you get nothing.
But yeah you dont need to be a genious to understand why we get so many immigrants...