It is a correct turntable, one of the best by Garrard in the late 70's
Driving Method is interesting : an idler wheel in contact with motor pulley and then, a belt from the idler to the platter. Good torque and no rumble, but you need a good belt and absolutly no grease on the idler wheel....!
Tonearm is correct, with "S" profile and automatic functions are smooth....if the mechanical is well greasing
It is very easy to clean parts and all the library about this turntable is here.
Note that it is the same chassis than ZERO-2000B, except of tonearm and strobo lamp.