Now to Helios: If the album is a bit short, I have to say that it's best so far I like it. Before I knew Chronicles and Epica.
What I like so much about Helios is the variety of hopeful and more combative / dark pieces. Although this is in Epica already very well done, one can say that the pieces are a little more concise, ie each individual leaves a special impression is no other piece of that here. In Epica the pieces were sometimes a bit too similar for my tastes.
Long story short: Who knows Audio Machine, will love this album and enjoy it again and again!