When the name Kimber comes up, there tends to be two main groups of people with two very different points of view. The first group sees Kimber as the Cadillac of 1911s, and tends to think of them as super-nice, high-end guns. And the other group sees Kimber as a joke who puts out crap guns to unsuspecting gun owners. I think the truth lies somewhere in between these two views.
Kimber was the first major company to offer reasonably-priced factory-produced 1911s with upgrades that were normally reserved for custom 1911s. And over the years they've solidified their hold on the 1911 market by producing good-looking and feature-rich 1911s and spamming the market with constant advertising. Back when I used to read gun magazines, I remember it was difficult to find one that didn't have at least one beautiful full-page Kimber ad.
But Kimber's quality hasn't kept up with their carefully-cultivated popular image. Kimber has been plagued with issues of bad parts, bad functioning, and bad customer service. Are these issues any worse than other 1911 makers in the same price range? They seem to be, but it's hard to tell for sure. But I can tell you that Kimbers are no better than Colts or Springfields, even though they've managed to cultivate the image that they're much higher-end than those manufacturers. And too many of their guns have prices that match that high-end image.
I think most of the hatred for Kimber comes from the fact that they've managed to convince so many gun owners that Kimber is the 1911 manufacturer, and that no other 1911 comes close. They follow this up with slogans like, "What every gun should be" and marketing reps that claim their high-end models are the best 1911s money can buy (seriously, a rep actually told me that). It's amazing how many casual gun owners refer to 1911s as "Kimbers", and that's obviously a result of their successful marketing techniques. Heck, I have a friend who carries a full-house custom Colt Series 70 built by Jason Burton from Heirloom Precision, and he's constantly asked, "Is that a Kimber?"