Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Groundbreaking for its time

This was probably THE most influential album in 1989. It started a huge wave of heavy industrial music that resonated throughout the 90's. The electric sound is similar to Depeche Mode, but the lyrics and subject matter are definelty darker in tone. Much like Mode's Ultra album. Definitely worth buying and listening to over and over again.