I concur with other posts around the build quality, seems pretty solid. The documentation is also very reasonable too.
Sync log below:
Indigo Z-Wave Version: 2.0.68
Node ID: 79
Model: Siren
Model ID: 00031088
Manufacturer: Unknown
Manufacturer ID: 0258
Protocol Version: 4.38
Application Version: 2.94
Model Definition Version: 0
Library Type: 6
Class Name: Siren
Class Hierarchy: 04 : 10 : 05
Command Class Base: 25
Command Versions: 20v1 80v1 25v1 86v1 87v1 70v1 71v1 72v1 73v1 59v1 5Av1 5Ev1 85v1
Encryption Status: Not Supported
Multi-Endpoint Types: - none -
Multi-Endpoint Classes: - none -
Multi-Instance Counts: - none -
Features: routing, battery, beaming, frequentWaking
Neighbors: 13, 14, 15, 19, 30, 43, 44, 46, 58
Associations: 1:[1] 2:[] 3:[]
Config Values: - none -