I own an MA505 MkIII and like it very much. These are the weaknesses in the design, as I see them: (1) Too many pressure-fit connectors between cartridge and preamp. You have the headshell to arm tube, arm tube to pivot assembly, pivot assembly to phono input (via DIN plug). These might not be any problem if you are using an HOMC or MM cartridge but might degrade the signal if using a LOMC. (2) Tonearm counter-weight is not in the plane of the LP. (3) No azimuth adjustment.
Of course, not all modern, big-buck tonearms are without at least some of these same design flaws.