I have 3 of the Lowrance hook2 in 5,7 and 9 inch. I use it mainly on down imaging. The side imaging is not very clear. The gps is very accurate. These videos are the best I have found. The one from fish the moment is a direct comparison on 3 unites. Hope this helps. I also use the long triple shot transducer with the pod on the feel free lure.
Night and Day Marine - YouTube
Is a $2,000 Fish Finder BETTER Than a $800 Unit? – The Surprising Truth - YouTube