without any actual traffic stats it is difficult to determine the value of the site.
There is a mix of paid traffic ( very low price) guenine search engine traffic and social network promotion traffic from twitter mostly.
But the value shoul go beyond that since there is content, a good theme template already setup and optimised and good seo already done on the website.
I am lacking time to work on this project if I could I would keep pushing it since it is profitable and doesn't require maintenance at all.
I'd like to add, the website comes with a 400 followers twitter account with 95% audit score.