I use LeadNav and I like it a lot. Like anything else (Lowrance GPS included) If you don't learn how to use it it ain't no good.
In my group I'm always getting the navigation questions even though every other car has a Lowrance. Not because the leadnav is better than Lowrance, but because I took the time to learn to use it.
I really got used to using it starting in 2015 when I started to use it as a GPS while chasing for a friends race team. When I raced the 1000 with them in 2017 we got a small sponsor ship from LeadNav, hardware kits (Ipad not included) and some free training and support. We used it on the pre-run (3 separate pre-runs with 3 separate Ipads) and I took everyone's notes and combined them into the race trucks Ipad the night before the race, then emailed that as a backup to the other 3 Ipads. All while we were spread across the peninsula. It was pretty great. We used it as our main navigation source for the entire race.
If you are going to use it in a race application or to plan some back country navigation, you WILL NEED the $250 a year subscription. And it is well worth it in my opinion.
If you are just using it for play car GPS then you do not need any of the subscriptions. There are plenty of downloadable maps to use for offline navigation.
I do recommend you use the additional Dual GPS puck. Mount it in a safe place because it IS NOT waterproof.
You will need a modern ipad to run the software, the hi res satellite maps are very large files. You need a fast processor and lots of storage. Your 16gb Ipad air isn't going to cut it.
Run it in Airplane mode with bluetooth turned on.
Good luck whichever you choose.
Pictures, because threads without them suck and because I love remembering my time in Baja.