It's very much a Ford V Chevy argument. I won't ever again own a Lowrance Product. I had a 10 and an 8 on my ride and within three months got so furious with software issues and ethernet incompatibilities that I ditched them and went to Humminbird and have had no issue. I had a lot of trouble with customer service, I had a tremendous amount of trouble with the units themselves and the transducers. Three brand new transducers in that short a time period had bad crystals, which was verified by Lowrance on all three occasions. Lowrance insisted that the issue, however, was in the mounting of the units and the LSS1. When a tech rep finally looked at it, the installation was exactly to their spec, yet they maintained there could be no problem with the units, it was the install. Sent both heads and both transducers back to Lowrance, and I get a call asking what 'd done to them as they were unable to update them. I asked how that was possible as I had just updated the units to their most recent release, and both were running simulation fine, as well as running without GPS. The issues started with the transducer cable connected. They said they were unable to even get the units to turn on... Terrible, terrible tech service. I told them to box the units up with the new transducers and send them back to me. I got the base maps to load individually, wiped the waypoints from the units, did a factory reset and sold them individually.
Oddly, I'm not the only person that I know of that has had this, or similar, issues. I know of two people that had linked HDS10 with Insight Maps (which Lowrance is losing because of Johnson's acquisition of Lakemaster. That technology alone is worth its weight in gold, and will be available in Humminbird units only...) both people lost all of their waypoints and any saved data on multiple occasions due to Lowrance software issues. They both had to run only one unit because the units were not linking properly... All kinds of issues.
I'm an anti-Lowrance and have a hundred reasons why. Not to mention the costs just don't compare.