Have two 200A CH panels; only downside I’ve seen is whole panel (house) surge protectors are external and still leverage two slot for a 50A breaker; i’ve seen other panels that offer the panel surge protector in the breaker, which is nice, as my panels are in the finished part of the basement.
Curious; why are folks needing multiple or more than one 20A circuit for Home Theater? I have one dedicated circuit; all equipment is plugged into nice power conditioner, and that conditioner is plugged in the single dedicated circuit.