I have a Lowrance HDS5 and I love it, to be honest I havent used it a whole lot as ive only had it for a little while. The menus are easy to navigate and theres plenty of customizing on the fishfinder, thats not with a Gen2 though so I imagine they would be even better! In saying that, I believe Raymarine 50a are as cheap as chips at the moment. I have seen them for around $700 with an upgraded transducer, No idea on what the product is like tho.