The nice thing about REW is that once it is set up, you can measure to your hearts content with little extra effort.
I ended up measuring all my listening positions and various points in the living room from multiple sub positions to learn that the bass in my system 'saw' my room as square. The kitchen and dining area space was part of the overall room.
As a result I had a huge peak at ~56 Hz almost everywhere in my room and no matter where I put the sub, including right in the middle of the living room. As a result, rather than wasting a lot of time on bass trapping (which would have never worked in my room) I picked up a parametric equalizer and just eq'ed it flat. I don't know that I would have figured this out without doing around 100 measurements over the course of a week.
Now, if I want to experiment with multiple subs to take care of some nulls that are not so uniform, it will take me 10 minutes to remember how to use REW, 5 to calibrate and I'm off to the races.
Blujays1: Spending Fred's money one bottle at a time, no two... Oh crap!