Yes it is addictive because helped me a lot. 

Before I have to rely on steem bots only to promote my post on steemit and that to sometimes end up in loss. 

Now after posting a post on steemit I login to Musing and spend my time and effort there.

There is no cost but only o have to give my time and I often get reward of that.

Musing is very helpful for minows like me. Because on steemit no matter how good your post is you often end up with no vote unless you use bots. 

Whereas, Musing upvote according to the content of the post.

I love musing because it helps me a lot.