A lot of the functions seem similar in concept to the 746 Pro, but in a smaller package. I like that they added a Manual Notch Filter capability in addition to the Auto Notch that the 706MKIIg already had. If you're coming from a 706 like me, there isn't that much of a curve to understanding how to just start using the basic radio features. If you're starting from scratch, I can see how it might take some time to really learn how to use the radio.
DSP filtering is nice. Adjusting the filter bandwidth and passband is pretty easy for a radio with only a few knobs. BTW, I have the modified AB5N mic which drives the radio very well. The first few contacts have all been positive.