USSR provided free education to all citizens resulting in literacy rising from 33% to 99.9%.
Soon after formation, adult education schools popped up in every town and every village.

USSR doubled life expectancy in just 20 years. A newborn child in 1926-27 had a life expectancy of 44.4 years, up from 32.3 years thirty years before. In 1958-59 the life expectancy for newborns went up to 68.6 years. the Semashko system of the USSR increased lifespan by 50% in 20 years. By the 1960's, lifespans in the USSR were comparable to those in the USA.

Quality of nutrition improved after the Soviet revolution, and the last time USSR had a famine was in 1940s.

By 1983, they had become completely food sovereign and eating better than Americans (according to the CIA)

The CIA has also declassified documents admitting that there was collective leadership even in Stalin's time.

USSR built solar power plants as early as 1930!

The Soviet Union declared the US apartheid campaign against their own black citizens were genocide.

USSR moved from 58.5-hour work weeks to 41.6 hour work weeks (-0.36 h/yr) between 1913 and 1960.

USSR averaged 22 days of paid leave in 1986 while USA averaged 7.6 in 1996.

In 1987, people in the USSR could retire with pension at 55 (female) and 60 (male) while receiving 50% of their wages at a at minimum. Meanwhile, in USA the average retirement age was 62-67 and the average (not median) retiree household in the USA could expect $48k/yr which comes out to 65% of the 74k average (not median) household income in 2016.

GDP took off after socialism was established and then collapsed with the reintroduction of capitalism.

The Soviet Union had the highest physician/patient ratio in the world. USSR had 42 doctors per 10,000 population compared to 24 in Denmark and Sweden, and 19 in US.

USSR defeated a smallpox epidemic in a matter of 19 days.