Hi, Allan !
From what I've seen on their site, plus a tutorial in a recent PC mag, it is intended as a 'studio' story-board, 3D visualisation program. It can do floors, walls, rooms, stairs, doors, windows etc etc, plus 'lighting' and animation, but *not* hi-res renders.
IMHO, that puts it nearer 'Classic' FP country than either TFP or TurboCAD...
I'm sorry, I don't know how big their 'free' download is, nor what 'utility packs' would be needed for serious architectural work.
Site says the program imports 3DS, but I cannot find export formats. I have the freebie on the mag's cover disk, will try to play with it, establish limits...
D'uh, things have been hectic here due family illness etc: Somehow, I've also found time to acquire, install a modest wireless router and a pair of NAS drives...