It is sucking away electricity from cities, making hardware costly for common user, pumping heat into global atmosphere, taking away jobs, creating massive amount of slop, killing human motivation for creativity, making academics and exams harder, creating fakes that are undetectable, filling internet with plastic content, pumping tons of unmaintainable code, wrecking websites ...

Still - AI is a great achievement?

Yeah. The two are not mutually exclusive.

Things do tend to end up being a net positive or negative, though. Even if both aspects are present, it doesn't seem far-fetched that someone with hindsight in the future would conclude that it was overall a bad thing in the middle of an energy/heating crisis. That would imo preclude the label 'great achievement', but time will have to tell (or we adjust how we use it before history decides on a judgement)