Man, that thing sure is ugly compared to the Reflexion Filter!
Hey, which do you prefer - shiny chrome or works good?
We tried that and then it sounded even more affected and colored.
The video's audio is compressed, as are all online videos. But the main change in quality is the absence of room tone. Listen again, and directly on-axis with your loudspeaker tweeters (or use headphones).
There's always some slight coloration with a microphone in close proximity to anything, even perfect absorption. The change would be less with an omnidirectional microphone because the sound that no longer gets into the rear of the mike has the same response as the sound that still gets into the front. With a cardioid mike like my partner's Neumann, the sound that had been bouncing off the walls, but was removed with our PVB, had a different quality than what arrives at the front. This is why I posted graphs showing how much less affected the sound is with our Portable Vocal Booth compared to the SE device. For those graphs I used a precision DPA omni measuring microphone.
Thanks for all the comments, and especially thanks to Phil for posting this.
--Ethan