I have Zoethecus stands for both my equipment and my amp. Core stands are similar to the old Zoethecus. Before that I a had Solidsteel 6.4 equipment stand. And before that I had a Target AER4.
My turntable is on a VPI turntable stand filled with sand and a thick maple top. I wanted a separate stand for my turntable away from any possible equipment vibration. The VPI filled with sand is VERY heavy and very solid. The maple top sits on cones.
I have noticed a huge improvement in the sound when I went from metal stands to a wood ones. All my gear is tube so that may make a difference. I think my system just sounds a little more natural on a good solid wood rack. If I were going to buy a new stand today it would probably be something like a Walker or Mapleshade stand. But I really like the old Zoethecus stands with their special Z shelves. I would not trade mine for anything.