I have one of these and don't know much about it. Can some one tell me if it's a good unit (better or worse) for setting way points and accuracy on returning to them? I'm considering a gps/sonar combo, probably a Lowrance, and I'm trying to do a little research before I take the plunge. Those new units aren't give away priced. All input will be appreciated, and keep in mind I'm not real electronics literate. Simple is good. If a good depth finder and the Garmin will do the trick, I'll go to school and learn this little unit. Thanks in advance for all your help and patience teaching this old dog a new trick.