The demo tracks are absolutely pathetic, and just about every note screams with rank amateurism. The vocals sound like an epileptic Donald Duck and the recording quality is horrendous, possessing the reverb usually associated with cheap radios played at full volume. There is a strong amateurish liking for samples, including predictable samples of Hitler speeches and German WWII songs.

Fast forward to 2005, and it is clear that while Gaszimmer remain an NSBM band, they have eschewed many of the cheap tricks of their demo. The vocals are greatly improved, the samples are gone and lyrics possess a greater degree of ambiguity. The songs are more complex and are not as simplistic as the demo tracks. There is a liking for the double bass pedal, suggesting a death metal influence. The guitars are occasionally distorted, creating a floating quality.

If the demo is a reliable indicator, then Gaszimmer have made considerable attempt towards honing their sound. However, they still have a way to go before they can be considered Italy's premier NSBM band.