in december i bought the hd5-x. sonar only. i like mine so far. i can track bottom at 40mph just like i can at 10. i have heard alot of bad things about lowrance gps however and in my opinion the 7 is not big enough to split screen between gps and bottom. i would go with garmin gps. they are giving a $100 dollar rebate on some of there newer models now thru april. i'm getting the 541 in a week or two. the screen size on the 7 is something you should think about.