Mid they're anything like the Swedish "the Left Party", which is out old Communist Party, they're fairly non-revolutionary (but I doubt there's more than a tenth of them who weren't firebrands when they were youngsters
), but highly anti-capitalist, highly EU-sceptic, and highly against privatisation of the public sphere and/or for republicisation of what has already been privatised.
I have pretty high opinion of that party. I feel are the only party left on the left wing that still has a moral bone in the body, and the only one that base their opinions on an ideology rather than what they think people want to hear. I guess it helps that they've had a bunch of likeable party leaders as well. In practice they lack much say about anything, but every once in a while you hear about them forcing the other "leftist" parties to agree to small things that make a difference. As far as I remember I have never actually voted for them myself though.
Then in Sweden there's there's also the other communist parties like KPML(r) (I hear they changed name a few years ago, but they'll always be "the Communist Party the Marxist-Leninists (the revolutionaries)" in my mind because the name is so hilarious) and one or two others of their kind that are still more hardline about socialism/communism and too foolish for me. I
think even then don't have many Soviet deniers/idealisers left among them though, but I can't say that with certainty.
Eh, sorry for the rant on our parties when you asked about Germany's. Just wanted to share.