I bought 30 Lenovo and Dell laptops for new starters at our business and have definitely found that, over the last two years, both present more issues than I would have expected from either. We've stopped buying Lenovo because of the problems our users were having, sticking with Dell and trying to weather the issues.
But I'm reconsidering them from now on. One of my current laptops have a weird issue and I tried to purchase extended warranty for them to fix it. Only to discover they now only service machines up to 3-years old.