The brands you mention were very commonly available to US service personnel during the Vietnam war. I assume they were sold through the PX, but when I met people who had been over there, it was pretty usual that they had systems with those brands. Good? Well, a lot were big receivers, with over large bookshelf type speakers, the Garrards of the era were plasticy--by the standards of what I was running in say 1973--Phase Linear 700, Quintessence preamp, Technics SP 10 and stacked Advents, it was not quite the same. By 1975, I had gone to all ARC tube gear using the Quad Loudspeaker- the SP-10 stayed in the system for a long time. Kind of the difference between component separates and receiver based (or possibly integrated amp based) systems.
I don't want to shun any of that gear- it was a snapshot in history- others may have a different view- I did not serve and I liked most of the guys who came back. I also felt for them because it was in the days before we recognized what the psychological impact was of being on the line.