hi all4music,
sorry for a delayed response. I finally took a chance and bought this subwoofer. Here is a brief on the performance.
Before I start, let me talk a bit about the set up. I connected it to the SW outlet of my Marantz SR5200. I did not make any changes to the speaker settings on the amplifier, since I don't have a monitor for the visual. So the front speakers are still tagged as 'Big'. I have a pair of Polk TSX 330 for the front speakers.
The settings on the subwoofer are the following -
1. the volume knob is kept between 8 - 9 o'clock
2. phase is off
I usually play the following tracks for testing a system -
1. Sultans of Swing - Studio Version (Original Audio CD)
2. Don't know why I didn't come - Norah Jones (Burned CD)
3. Nayan Tarse - DevD (Burned CD)
I played from my Philips DVD player (basic one). I seriously can't complain. I was quite awed to hear the sound - the Cello was deep, drums were not boomy at all and for Nayan Tarse, the thump was perfect. Increasing the woofer volume didn't lead to any major disappointments.
I am sure there are better subwoofers (there definitely are), but for my requirement this suits me great. Later I played Miles Davis - Kind of Blue, at low volume, it was simply amazing.
I didn't want to get the kind of sound you get in pubs, with their super powerful glass cracking bass, so this kind of made my music system complete. I will wait the years for my ears to get more refined, may be I will have better views and would be able to critique better but for now I can't complain. I took a chance at this, because in some ways I didn't want to wait further to get the top notch quality. I have no regrets, so if you are planning for a low budget sub, please give this a shot, you'd probably get places to audition this, else am in Bangalore feel free to get in touch

.
Btw, after the addition of the sub, I have stopped sleeping in my bedroom because the system is in the drawing room.
Happy listening, please let me know if you have any questions on the sub.
Ramanuj.