I've been running the NaviPlus system for over a year now in my 2015 HSE Lux. I don't have any regrets with the system, and have found it to be a massive upgrade over the stock media experience. I purchased the wireless option ($100 extra) and for the first ~6 months it didn't work, but Naviplus provided me with an update that's resolved it and it's been completely reliable. I have an iPhone 12 and in my LR4, I've attached a MagSafe charger to a ProClip mount and the overall experience is great -- my phone automatically connects to the CarPlay, and I simply need to press it to the charger and it stays in place and charges.
You get to retain all the factory UX (4x4 screen, audio settings etc), it simply replaces the "Nav" option. It's great to use Google Maps to navigate on the road and Gaia for off-road trails. Unfortunately if you want to retain steering wheel controls there's another $100 option -- this wasn't available when I bought mine, so I don't know how well it works.