My first mill was a Warco Major ( pain to keep the register when the head was raised ) , followed by an X3 ( fried electrics ) and finally a Warco VMC ( I can cope with belts and pulleys)
I went for the MT3 option to make use of my existing tooling. Never had a problem either holding of releasing tooling . A gentle tap with a copper mallet being sufficient . I added a power feed to the X axis . It is not quite a "bolt on " as the literature suggests but it is not difficult.
No problems with the quality or accuracy . Installation was not a problem . Engine Hoist to raise the mill, slide the base underneath , bolt it together.
Brian C