I've had 4 boats, 3 of them sailboats. Autopilots on all. Went to Mexico on the 25 sail and the So Pac and Alaska with the 36. I loved them all. Most important, it steers a straight course which if you're out of sight of land is important Next, steering any boat for hours on end takes patience, especially when you're going slow (<20, usually 7). An autopilot allows me to navigate, that is seeing everything around me and avoid them, as well a steering around debris. Also, if everything is clear for miles, I can get a cup of coffee. Judy doesn't allow me to drink beer when the boat is moving.
Journey On has an Raytheon which I installed when we got the boat, 15 years ago. I've sent the computer back to have it repaired once, good service through their repair dept.
I have several thoughts. First any functioning autopilot is better than none. Second, since Journey On is a 25, it has hydraulic steering and allows me to use a hydraulic pump autopilot. And finally, I think all the various autopilots are good and cheap: Lawrence, Garmin, Raytheon and so on. You might get one that's compatible with your plotter. One might do one thing better, the other another thing. You decide what you want: fishing, cruising, etc.
But get an autopilot.
Boris