I've honestly never been fussed on them.
People go gaga over the whole experimental, deep lyrics and weird structures but I honestly find them boring.
I do like progressive music but Tool have never done anything to really impress me.

To me rock and metal is about the energy, even some of the most progressive bands have that and I feel nothing from Tool.
I don't exactly hate them mind, so its not an outright attempt to h8 on T00l.
I think what the problem with them for me is the vocals. I'm a huge fan of dramatic, unrelenting frontmen blasting out note after note.