I did a search and it seems that there is no definitive answer. I remember reading a few posts here and perhaps also in some other Volvo forum that the Bilstein Touring is not recommended due to quality or something rather. The Turbo gas by Sachs or Boge seem to be the choice of bricknuts, and I was set on getting a pair for the rear until my Volvo indie suggested the Bilstein Touring. Well, he said I can't go wrong with either, just that he seemed to be leaning toward the BT. Btw, both are about the same price (which includes installation--about $230 total). The BT, he says, come with a lifetime warranty but not the Sachs or Boge TG. My wagon has a rear 23mm iPd swaybar (22 up front), and I want a nice, comfortable--no harsh--ride yet want some sportiness and control, but ride comfort is more important. Which to pick?

ps
Doing the rear first because to do the front also is way expensive, about $600 something total!