Please report.
I've been using mine now for 3 years. The main problem I have is that the AHRS is in error a lot of the time, showing the boat basically crabbing sideways over the ground (and in the worst case backwards). The picture generated is kinda sorta accurate I think, but it can be a little hard to follow. I was not able to install the transducers very far from the engine and other electronics, possibly there is sufficient interference to cause the problem? The Raymarine software relies on the AHRS to make sense of heading, yaw, roll, and pitch, it doesn't seem to take much (on my boat anyway) to knock it out of whack.
Still, it can be pretty useful in many situations.