I'm a bit late saying this but happy birthday Panda!
Better late than never. :)
I have to agree, it's off putting at first but hey, it's not entirely garbage. Main problem is the choppy frame rates but everything else, I think it looks very pretty, especially the landscapes and the mechas, lots of detailed work.
But then it's not easy to animate a Tsutomu Nihei manga. Knights of Sidonia is accessible but try animating Blame! or Biomega, it's just impossible. His landscape and architectural designs are too complex to be made into an Anime. Even his monster designs are quite complex.
So in the end, rather than saying it's garbage CG, I prefer saying that this is something new and may get some getting used to. It won't replace how anime will be made that's for sure.
Also I would say that it has some very, very good sound design.