I've kept that one in heavy rotation the last 6 months or so. I disagree that is sounds harsh (at least it doesn't on my system) but I'll second the observation that it's somewhat lacking in bass. Or rather, there is some low bass, but only in a few spots. Otherwise I think the disc sound quite good, and I love the use of surround effects. The music is amazing, IMO.
Interesting enough, while I'd only discovered PT about a year ago, they've been around since the 80's. At some point I want to delve into their back catalog, but I'm definately spoiled by the DVD-A version of In Absenstia.