I have a GA-212 also. I love the way the table sounds, but I am not thrilled with the bounciness of it, its hard to use the carbon fiber brush without pushing the platter into the plinth. Mine also has a screwed up power switch. I take it that it is difficult to find a suitable replacement?
I have it set so that the switch is "on" and I don't touch it or it will be off again until I open the bottom and fiddle with it again. I just unplug it when I am done.
Other than that, with my new ATS-12S shibata stylus on an AT247E cartridge, that table sings quite sweetly!