What other annoying features? Curious to hear your thoughts, you rarely read negative reviews. I've never had the pleasure of using either.
Thanks
Since you asked, here is my detailed impression:
1. It is heavier, and less comfortable to hold. This may sound like not a big deal, but, for a street photographer like me that is used to be out on the street for 10 hours a day, with a camera in his hand all the time, this is very important, and a factor in considering whether to buy it or not.
2. When NOT using auto exposure, if you are set to the wrong shutter speed, you will see in the viewfinder arrows like > < that will indicate if you are above or below the correct speed until you hit the correct speed. just tell me the correct speed (like the Epson, which just shows the correct one blinking) , I need to shoot, fast.
3. As I said before, white balance is not that good, better then the Epson, but not good. Here I would like to say here that at least in the Leica, you can manually adjust the white balance. common Epson guys, make me a worthy R-D2.
4. ISO speed can only be set from the screen, and the screen cannot be hidden like in the R-D1. Again, this sounds petty, but one of the things I really like about my Epson is that I can set everything from the body without needing to use the screen, and that the screen is hidden. It keeps me focused on the street.
I always thought of the M9 as the ultimate camera, that is perfectly built. Well, it's not. As I said, from being 100% sure that I will be buying one, I totally changed my mind, if would go to the store, and see the M9 and the R-D1 next to each other, and test them, I would definitely go with the R-D1.
The M9 feels to me more like a cool expensive gadget than a camera for a hard working street/documentary photographer.