DG,
I have a PCM 96 and love its sound. The range of presets, apparent depth and great tails make it sit great in the mix. It is much, much, much beefier sounding than convolution reverbs like Altiverb. (Yes, I have Altiverb and use it every day.)
Lexicon finally delivered the software to allow for two simultaneous stereo instances via FW.
Of course I believe you are on PC so the software version won't be of use to you since it's Mac-only. The software is a little skittish though. On Logic you do need to play with the Preferences' send and buffer settings now and then. Especially if you have VE3 on another computer.
I ordered a Bricasti yesterday. Quite excited about it arriving. Might be a couple weeks before I get it an get it set up. Apparently according to Apogee I won't be able to use the Rosetta 800's Dig i/o with it. Well, actually only either out or in. I'll have to find out more from Apogee today on that. I'll probably go out dig and come back in analog.
Overall the reputation of these 2 boxes are:
PCM 96 - lots of great sounds, 2 simultaneous instances of stereo via FW, great price
Bricasti - intensely wonderful rooms, halls & plates, no FX, one instance only, no computer control, more expensive (remote alone is $2100)