Anyone Used REW-Room EQ Wizard?

After getting a new set of speakers "dialed in" to my "man cave", I purchased a new pair of sub woofers for that last octave of bass.

In the past I've had to be patient, integrating a sub with a pair of monitors, to get them to sound "just right", adjusting the positioning of the sub and the speakers, adjustment of the volume, crossover frequency, etc. and eventually got the system to sound right.

With the pair of subs in the "man cave", it hasn't been so easy.  I've tried all sorts of positioning (next to the speakers, off to the side, in the middle of the room, etc.), and have installed eight bass traps so far and the sound is improved, but there are still "holes" in the bass registers, where the volume is highly subdued, compared with most of the bass range, and with some acoustic bass tracks there's still some "boominess" in the room.  The bass traps have dramatically improved the detail in the bass range so far, but it's still "not good enough".

Before I order and install more bass traps, I thought I'd get more accurate "information" on what's going on in the "man cave".  I stumbled on "REW", a program that with a decent calibration microphone (ordered a miniDSP UMIK-1 from Amazon), could give me the info I need to do a better job of improving the bass response.

Any experience with REW and a USB microphone?  If so, any advice?
Amir, founder of WBF forum, started this very nice tutorial thread on using REW. I don’t think he ever did finish it but it should give you a good start.


Thanks, one of the best I've seen on REW!  I hope to have the microphone by the weekend and will see what I can find out about identifying the problems with the bass in my "man cave".
I had the worst experience working to integrate a pair of new subs into a (new) listening room, used a sound pressure meter and tonal sweep, but it just didn't sound right.  I found using REW and a miniDSP calibration microphone worked wonders in helping me 1) place bass traps and 2) adjust the placement and settings on the subs to most effectively integrate with the speakers and the room.
I highly recommend the combination, will save you time and headaches!
For a beginner "Master Handbook of Acoustics" will help interpret REW results and provide direction. Kind of obvious but take measurements at multiple locations for bass anti/nodes, and play with mic orientation. And wear hearing protection during sweeps.  
Revive an old thread... I have a computer feeding a DAC feeding a preamp feeding a power amp feeding the speakers. I have a new USB microphone and loaded Room EQ Wizard. I typically use JRiver to deliver FLAC files to my DAC. 

With REW loaded, it sees the microphone just fine, but how do I get the sweeps to play through my speakers?