I even considered buying a Lenovo recently when a pretty nice looking ThinkPad was on sale, but a couple of friends have had very bad experiences with their Lenovo laptops. Both have had to go back to Lenovo for repairs; one of them had to send it back twice, and on the second go around demanded a new one instead of a repaired one, because the "repaired" one was worse than when it went in for repairs.
That said, there's "bad QC", which is forgivable with time and a sincere effort by the company to correct it, and then there's "evil". Intentionally shipping adware is evil.
Given this, I can genuinely think of no way for Lenovo to ever get my business for any product.