Hi, I'm using altiverb for years in combination with logic. Why altiverb and not space designer? The reverbs are very ..real... warm and definitely better than in space designer.. On the other hand, space designer is nice to use for special effects on sounds, So, IMO, space designer to colour sounds, effects, Altiverb for global mixes and of course, colouring sounds. Jim Bannockx www.nacnacmusic.com www.comediadolpho.eu