in 1979, I would use one after school MON - FRI before practice.
I was in 8th grade on the hockey team, so we had a rink in our high school which was across the street from our Jr. High.
It was pretty cool, thats all they had (My home gym at the time had more than the HS).
When I got to HS a year later, the Universal was gone, but we had full (though small) weight room...
That machine came in handy at the time...