I think what annoys me about it the most is that for every good idea in there there's one piece of tedious crap you have to work around, one actively bad misfea

I think what annoys me about it the most is that for every good idea in there there's one piece of tedious crap you have to work around, one actively bad misfeature that doesn't work properly, and one terrible aspect of the awful scripting language. (And two minor annoyances that people determined to hate CMake will never shut up about. But then, if you're determined to hate something, there are worse things than CMake to do it to! So I can't be too critical.)