don_c55 - Actually there are a lot of positive posts on the 532h. The one consistent negative is that the service is expensive and slow. But there are a lot of positive posts about the sound. Some have noted that the 532h can be somewhat laid back and dark, but that is a common characteristic of Levinson amps.
No experience with the Ampzilla, so cannot add to the comparison.
No experience with the Ampzilla, so cannot add to the comparison.