I kinda view these as entirely different companies and IIRC Lenovo was even thinking about splitting their computer divisions into companies with different names.
That is one thing apple really does well for their brand: only sell premium stuff under one brand (Beats not withstanding). In contrast Lenovo has a mixed reputation: Thinkstuff never had any of the issues you mentioned, but is still tarnished.
Similarly, Dell has great high end stuff, but awful low-end and Samsung just has everything (and washing machines and...)
That is one thing apple really does well for their brand: only sell premium stuff under one brand (Beats not withstanding). In contrast Lenovo has a mixed reputation: Thinkstuff never had any of the issues you mentioned, but is still tarnished. Similarly, Dell has great high end stuff, but awful low-end and Samsung just has everything (and washing machines and...)