Well, I hate to say this, but, Immortalis is absolutely awful to me.
Not even worth downloading.
It is just cheap. No other words needed, just cheap.
Disclaimer: ReliXIV IS the absolute rock bottom, but, this here is almost as bad (and sad).
I AM an Overkill fan, beside The Years of Decay and Horrorscope my favorite records are the "Joe Trilogy" (The Killing Kind, From the Underground & Below and Necroshine), in a meaning that I love both "old" Overkill and "new" Overkill, but, they are really out of focus with the last three records.
Bloodletting had some great songs, but a really fucked up drum sound - Colin Richardson did what he could mixing (and did great with everything except for the drums - man, those guitars are rib-moving), Killbox 13 had a nicer sound but the songs are mostly weak and then, ReliXIV, which I TRY to listen, but fail every time. "Old School" is cool, but, looking at a bigger picture, I would like to forget that that album happened.
I listened to Immortalis 4-5 times, and, I am sad. Just sad. Sound (production-wise) is on the level of the Feel the Fire (considering it IS 2007, very, very bad), songs are pretty much meaningless, performances sub-par (Dave Linsk is hell of a guitar player, but the solo in that first song made me cry, both the sound of the guitar and the structure of solo), overall, I am disappointed and would rather buy another copy of Horrorscope to give it as a gift to someone than this one to keep it next to my copy of Horrorscope.
Just my two cents.