I ran Lowrance for years, and Garmin for a couple of years too, and made the switch to humminbird to a 1197. I couldn’t be happier with it. I now have a 1197 and a lowrance 520 on the bow of my present boat. I had an issue with interference from my trolling motor while looking at SI. I called Humminbird, and they sent out a interference reduction kit that kit included some filters, and a new transducer for free. I also had an issue with a second thru hull transducer that they replaced for free as well. I haven’t had any issues now going on three years with my 1197. I had the GPS puck go bad on my Lowrance 520 last year, and I was able to get Lowrance to sell me a new one for a 50% discount. I was hoping for free, but that was better than full price. I haven’t been with anyone running the new HDS lowrance stuff yet. I know they had issues when they first came out, but now it sounds like they have them figured out. I would say as far as customer service goes in my experience there is no comparison that Humminbird is better, but Lowrance is getting much better. The sad thing is that before Lowrance sold out they had outstanding customer service. All that being said, I think you can’t go wrong with either, but I know to buy as big as you can afford, because with screen size, bigger is better. At least for my old eyes.