Bonsai Focus is the end product of a merge between Bonsai Today and Bonsai Europe, both excellent magazines before the merge on their own.
The new magazine is well designed and contains great content. It is most likely one of two of the best English language magazines at the moment, International Bonsai Being another, with the American Bonsai Societies Journal bringing up third, in my opinion. Reading all three definitely has advantages and I personally would be hard pressed to pick only one.
So yes, it is worth a hill of beans and then some.