I wonder if the benefits of the eq for the room outweigh the effect on the audio signal?

I have no experience, but have heard conflicting opinions. Some rate all this hi tech approach, like eq and time alignment etc. However it often makes things better in one exact seating position, but much worse for everywhere else in a room. Not ideal if you don't listen alone! I did consider a Tact pre a while ago, but I think it's like a dog chasing his tail really.