Daniel, I have had my STF-3 for almost 2 weeks, not really calibrated it but setup to my ears liking. It literally shakes the walls during movies and I have it turned down.
Used it for music as well and I really like it. Subtle bass with jazz, blues and I really notice I "feel" the bass with more rock like Bob Seger, Neil Young, John Hiatt.
I had it on low in the other room and the wife and I were giving the kids a bath and she noticed the sound of the bass from the bathroom while I was playing her favorite Norah Jones disc .
I know a real audiphile place in Calgary that carries HSU and the guy there is a snob against HT setups. He was suggesting the VTF2.2 10" sub to me.
My final conclusion to you is that the STF-3 is great for movies, really good for music, but if you are a borderline audiophile you might prefer a 10" sub as it may be tighter bass, but will not move the air you need for a large room for HT.
For me the STF-3 is almost perfect. Because nothing really is "perfect"
