Lloyd Chambers wrote an open letter to Leica:
The M9 felt like 2 year old technology the day I got it, with many disappointments.
And yes you are allowed to bad mouth Leica. I believed that the M8 was a mishap – evidence that Leica didn’t really know what to do. Apparently the M9 is too. And very expensive. Chambers has already written very extensively about the M9 (sorry, paywall).
And I have read a lot of praise about the Leica M9 too.