I'm not really a metal guy, but I went through a metal phase in my younger teen years, and tool was my favorite metal band. That album specifically I thought was really underrated. I think I still decided on aenema as my favorite. But at first I think I thought undertow was the worst one or it was boring, but I remember it growing on me, and I ended up thinking it was the second best.
Problem is that all of those nu metal bands sound the same to me now, and they haven't aged well. There is definitely a certain cheesiness to it. Hasn't aged well.