Canadian National Lionel Dash-9

I would like to no how this new dash-9 is.I am not to sure where I heard but some one from the forum said the sounds where low.because i am thinking about getting one.I would like to see one in action and hear the sounds and to see the detail.just got the CN SD70M2 from Lionel's coal train set and the engine sounds nice.Lionel has the size at 17 1/2 but its the same size as my MTH SD70M2 and MTH has there 18 1/2 inch.

Thanks