I'm not OP, but I can certainly give you my story from Hungary. Not USSR in name, but USSR enough for the distinction to be moot.

Story starts with parents and grandparents. They were around when the soviets put Rákosi into power. He installed communism - everything belongs to the people! Including our fucking house. My grandparents often retold how police came one night, told them their house now belongs to another family, and they were told to get lost by morning. They could bring whatever they could carry with them, but they had to leave all the farming equipment, all the animals, pretty much all their belongings behind. The few hectars of land and our animals all belonged to the Producer's Union anyway, we lost all rights to them virtually overnight.

Not that it mattered. The things you produced? Since everything belongs to the people, police would come and take away whatever quota the party set that year. Even if we produced it, it's not ours after all. We may or may not got some of it back, depending on what the allocations were set. Usually not - famines got common, becuase noone cared too much about their work if it got taken away anyway. It got so bad that the good communist people people revolted against Rákosi.

Then came Kádár. I actually lived in that system. Shortages were commonplace. At the start things were strictly planned (later on they opened up to allowing people to work for their own benefit... strictly after they put in their required hours at their workplace, though). There were five year plans, though for what I know, those were mostly for propaganda. But since there wasn't a free market, the planning bureau would decide how many tractors, shoes, bread etc would be produced. Well, this never worked out well. If you wanted to buy fruits, toilet paper, anything, you would need someone to tell you when the shipment would come. Then you got in line early and hoped the stock wouldn't run out by the time you got your turn. And you bought whatever you could, because if you had excess toilet paper and your neighbour had none, you could barter for something you needed.

We wanted a car. So we applied at the state car dealership (Merkúr). We paid upfront, waited a year... and got a totally different brand of car in a different colour. We were furious, so we demanded our money back and purchased a second hand Lada Samara from someone in town. It still wasn't what we wanted, but I'd have rather burnt my money than give it to Merkúr at that point. Turns out the Lada Samara 1300S was a great car though, I shouldn't have sold it like twenty years later :(

We wanted to build a house. Only everything was in short order. We had to drive three-four towns away, buying bricks and ceramic tiles left and right until we had enough that we could start construction. We didn't build what we wanted; we could've paid for it, but we had to build whatever we managed to find in stock around.

Now I know people called us the "happiest barracks" because say Caucescu in Romania was way worse... but people who are so fond of actual socialism should remember that our people were risking getting shot to escape this system.

Fair enough, haha.