I run lowrances and I love them probably because I'm comfortable with them. I love the combo units and wouldn't go without them. Difference is I run two 7" units on my dash that way I can dedicate one to fish and one to position and have 2 full screens for cheaper than one 10" or 12". A bonus about two is if you have one go out you still have another unit with gps to get you back, kind of like a kicker on the back. Has happened to me before. Just wait until cabelas or bass pro has a good sale on them. I run the hds 7 and they work great for me.