I have the HDS 7 Live, performance in up to 65m of water experience so far and ok, main reason I got it was for managing my Motorguide leccy. I find Lowrance very unintuitive to use. I have an old 751sx Garmin beside it and it walks all over the HDS. So far I'm struggling to be able to link my phone or tablet to the HDS, they just keep saying "not found", pity as I was hoping to sync the WPs and Tracks so I can manage them