I installed a EV100 in 2017. It has served the purpose of managing the helm while I attend the sails or navigate the waters of the PacificNW.
@Stu Jackson was spot on with his description of weaknesses.
My experience, the system holds a true course when receiving direct input. I set the course using the wheel, Engage the AP wheel lever, press the AP Auto button and we are off. Straight lines in the wake.
Under power and relatively calm seas she holds course for miles/hours.
I have had a couple of events. Once I placed a radio with magnetic speakers (boom box) a top the cabinet with the (StarTrek Enterprise looking) sensor and the boat did an immediate “Crazy Ivan”. The sensor does not play well with strong magnetic fields or large ferrous metal objects. Take this into account when locating the place for the sensor.
I feel the plastic nature of the wheel unit will eventually be the part that gives up the ghost. I have experienced the lever popping open. Solved by tensioning the screw on the lever. It likes the Alice touch. Not too tight not too loose.
Sailing is about balancing the sail plan. It is stingy on power. The ability to set the gain gives you a tight crisp route (Lots of micro adjustments to keep the tight track) or a softer more meandering course. I do not have the wind instruments, though you can bring them into play. I have set up depth by using a RayMarine ITC-5 box and an old transducer that was installed in the boat. Works great. Shows on the AP display. Numbers are small so you need sharp eyes to identify what is being displayed, or your need to have the AP unit located at the helm. The unit came with adequate cable to install pretty much anywhere. The SeatalkNG is easy to use and connect.
It is a good unit for coastal cruising in moderate weather. It works for my needs. It will work on your boat.