Guys - took it out for the first sea trial last night in I-Bay, there was a chop in the bay and I was impressed with it. I took it in/out of Stand By mode (manual vs auto) with no issues from both the GPS and override button. The system was quite for sure and adjusted my line often and stayed on line perfectly. This is my first experience with an autopilot, so can't give you much comparable thoughts. Installation on my small boat was not difficult except for space and layout - I cut an access panel and put the pump, network, computer and electrical in there. I did most all the install minus the electrical breaker and bleeding the hydraulics (that's a two man job for sure) - its doable to DIY. I did not see any interference on my sonar while in auto mode. One issue was when I first powered unit up to commission it, my new HDS9 could not find my autopoliot, after a couple calls to lowrance we finally got it resolved my software was v4.0 and needed to be upgraded to v5.5, after that it went smooth. Lowrance tech support was average, I build and support software for a living so I think they could be better. PM me if you have specific questions. I hope to have more thoughts when I start lake fishing asap. Eric