I thought we hated it because they were all ugly monotonous blocks with often pretty bad apartment layouts, often used to import a bunch of Russian workers to an existing city to slowly replace the local culture. But maybe that's just me.

That's not to say I don't like the idea of everyone having housing, or even the idea of big apartment buildings. Just make them not look like prisons ffs. And put elevators in 5 story and lower buildings too. The soviet 5 story apartment buildings at least in my country never had elevators, so they were like a big F U for disabled people, as you couldn't even get to the first floor without taking the stairs. Disabled people could only live in the bigger ones.