IMO, most PWC badged items/sets have better quality in terms of far fewer random cosmetic defects that often are found in current production higher priced items.
Obviously the speed control is not like Legacy, as suggested above, but TMCC in many of these is pretty decent. If you are looking for extremely fine control more speed steps, etc to approach more recent Legacy electronics, then you are not going to think they are great.
If you will be happy with PW-like models, but with TMCC electronics for control and sound inside them, they are probably going to make you pretty happy.
Not sure how MPC comes into the discussion for PWC? While some nice items were certainly made in MPC years, that predates the PWC Series concept by at least a decade, and obviously no MPC items have TMCC in them.
-Dave