I've been using the XOG for about 2 years now. Here's a couple observations.
Always keep it plugged into an external power source. The internal batteries do not hold a charge for squat. In cold weather, even when plugged in, the internal batteries will die due to the temperature sensitive charging circuit of the unit.
In options, third page, look at your device information. If you're not running version 1.8.0 or higher, you'll need to download it from the Lowrance site. Definitely makes a night and day difference in operations.
In My Trails, I reset the Maximum Points to 9999 from the 2000 default setting. That way the oldest points will not get erased when on a long ride. Kind of a bummer to attempt to follow your tracks home only to find out the starting points are missing.
Adding a new trail, from time to time (after lunch, different day etc)in a different color, makes it easy to see where you've been compared to where you're going. The most, that I've had displayed, is five trails in different colors and patterns. That can get to be kind of a mess. So I either delete some or all and start over.
For me, running with Tracks Up is better than North Up. It seems easier to know to turn right or left without flipping everything over in you mind. What's on the map is what's in front of you. A simple touch of the screen changes it to north up to compare to your paper map. I still like a paper map to see the big picture better.
As far as display settings, just change one thing at a time and see how you like it. Information is good, but too much can really clutter things up. Simply go to categories drawn (or any other setting for that matter), change something, go back to the map and see what looks different. Drove my wife crazy with all the beeping! When I got "the look", I turned the sound off! Wise move. LOL!
Too bad Lowrance has discontinued the product. (Probably because Garmin is rocking with the Nuvi series) The XOG seems to be a great value with very few limitations. The only minor things, that can easily be worked around, are the poor battery life, screen is not viewable in direct sunlight, and slow speed tracking(but that's more of a fishing thing)
If I didn't already have my XOG, the Garmin Nuvi 205W or 500 would be my choice.
Cheers.