Well, after playing with the ronin I've found a couple things. If you like tweeking the settings in the gui, this one is probably not for you. DJI doesn't give you much to work with, speed and torque is about it.
A bug in the gui has you check a box for briefcase mode, but that disables the mode, uncheck the box and it works (although the stop motors check box works.
The top handle has loose grips that can't be tightened, not crazy loose but enough that you feel a slight bit of play. You really have to horse down on the wedge plate that attaches the gimbal to the handlebar or you get play.
One strange thing that happened (only once and not sure why) was after doing the inverted move to put the camera above the gimbal, it reset all my settings in the gui to factory. The transmitter has also lost signal a couple times while on the bench, I had to shut the unit off and turn it back on.
I also don't always get the percent finished line when I hit auto tune even though the gimbal responds to it.
The balancing is as easy as it gets (granted I haven't balanced a larger camera than my dslr).
All in all so far I'm happy with the ronin, I mean come on, a half hour after unboxing I had a set ready tuned gimbal, try that with some of the other bg's.
Edit: This is me running the assistant on a windows laptop, I haven't loaded the assist on a mac device yet. Android soon dji?