I had Salomon F22 boots that I loved, but were too old and I decided that I wanted boa boots this time around. I did not want single zone boa. I thought the DC Judge was a good deal, so I tried 3 different sizes and they were just a very bad fit for my feet.
I didn't want to spend sooo much, but ended up getting the Thraxis. I have small feet (6.5), and in the smaller sizes they don't have 1/2 sizes. So I had to choose between getting a 6 & 7. I went with the 7, and my only complaint as far as the fit is that they have packed in and they are a bit too big. The 6 may have been too small, so I guess this is better.
They are quality boots. Warm & comfortable (yet stiff). Responsive. Good materials. I have no complaints riding in them, or walking with them on. They slide on and off smoothly as well. The three boa systems are a real benefit, because you can tighten the liner without having to open the boot. And it is really nice to be able to leave the boot loose and tighten it at the last moment, or on the Gondola... It is also great to loosen them as soon as you get off the slopes and are walking back for the day.
One other thing is that the knobs sometimes get in the way, or you bump them, or it feels weird to cross your feet when you're resting. Overall, I like them, but boy are they pricey...