I love Lifelover, and somehow they go through phases with me. What I mean by that is that I listen to them religiously, then I don't listen to them at all. I was going through the latter when Dekadens came out. Konkurs and Erotik were my favorite releases, hitting both Depressive Rock tones, like Katatonia, and hitting high pitched ghost howls, thanks to Kim Carlsson. I will say that I was eager to hear Non's drumming, since their last drummer, S, left the band earlier this year.
Dekadens follows the same techniques and sounds as Konkurs, but it doesn't flow as well. I'll admit there were a few catchy songs on Dekadens, but really the only ones I liked a lot and worked their way into my favorite Lifelover songs were Lethargy and Myspys. Most of the songs were sloppy, and followed the same techniques on drums. The saving point of the EP was the vocals by Kim, which are always good, especially in his work in his solo band, Hypothermia.
Now, I don't hate Dekadens, but I will say it's not the best Lifelover release, and it's by far not the worst. I don't like their Promo at all, really. It's like an album that you can't skip tracks on. I will say that once they found their sound, this is the worst release. Pulver, their most raw release is even better then Dekadens.
I thought the whole 5 or 6 guitar track thing is getting old. I thought they'd go for a different way to produce their ambience. The bass is rarely heard in the album, unlike in Konkurs and Erotik, where you can clearly hear everything the bass does. I'm not much for bass, but it does make Lifelover who they are when you can hear the bass. The synth and piano tracks are great as always, but at times they seem a little lifeless, which is rare, especially for this band. B usually does a great job at piano tracks, as well as his spoken tracks, which seemed to also be non-existant.
I hope the next full length really isn't anything like this release, because this one, though short, is pretty shitty for a Lifelover release. The shortness just adds to that, I think. They should've just passed this EP, and made a full length that flowed better then this one. I wouldn't suggest that you start with this EP, rather, start with Erotik, go to Konkurs, Pulver and then this one, because of all the reasons said.