I had a m.9 and can say that they are voice similar. The main difference is better truth to timbre, weightier low end and a high end that is about as real as I've heard.
The Benz L M H wood bodies are excellent but if you ever can swing it get a Ruby or LP series, you won't regret it.
BTW, I was able to pick up an ZYX R 100H, NOS and this thing is the real deal. I post further thoughts on it in another post.....but all the good things you've heard about the is more than true. Best, Best Buy when bought smart.