SteemZzang is another condenser on Steem Blockchain. Anyone can create contents here in different categories which then will be broadcasted on the blockchain for the rest of the Steemians to interact with.
Here, arise the question, "Why is it needed then & How is it different from Steemit?"
Now, whatever you'll be reading next is completely my understanding that I derive from reading a few posts of SteemZzang's administrators/operators/committee members...
SteemZzang has recruited and nominated curators (committee members) for one or more categories, who'd be looking for the posts in their designated/assigned fields/categories, and would be responsible for upvoting/curating them.
For example, 
This kind of committee might be existed on Steemit as well, but I am not aware of them.
As I talked in one of my previous posts, good content creation is not an easy task and in order to make Steem Blockchain a better place for content creators and attract more and more of them to the blockchain, they must be appreciated and rewarded accordingly.
SteemZzang seems like a good place for them to get extra rewards for their hard works, they put in their contents/articles/posts. The only thing needed now is to spread the word outside the blockchain as well.
TO CONTENT CREATORS ... Don't worry, you can post here in English as well.
Thanks to 
PS: I find SteemZzang more structured and systematic. If anyone feels any problem, that could be because of initial days rush and overwhelmed system, I haven't face anything like that though. You can contact them on their Discord in case of any problem and queries.
Wish you all a lovely day.