I had two marcum lx7s, the first one was faulty out of the box the second one started freezing up and restarting by itself after one season. I then switched to a cheaper but seems more reliable humminbird ice 35 it’s lasted great very simple and dependable. I now have a ice 55 and it’s just a little better then 35 as far as features goes. So myself would recommend humminbird. I herd good things about vexilar as well.