Frankly I'm not a big fan of ANY onboard nav. I have a 2014 Jeep that has a great head unit...love the U-Connect. Have never used the nav. If I need Nav, I use the TomTom on my phone. Always easy to update, always free once I have the app. I travel into canada a lot so I needed something that was stored locally and did not need data.
A lot of the newer head units have mirroring. Plug in your phone, use the same nav you are used to. Problem is, we're always selling to 40 years of technology gap. The people that want all the latest and greatest (who yell at us for not having Blu-Ray the day it comes out) and people that are still mad we don't offer 8 track. So it's a catch 22.
PLEASE do not send questions via Private Message, my inbox fills up too quickly. Post questions in the forum as a new thread so that other users can benefit from the answers. Use Private Messages for sensitive information only (VIN, Contact info or things you do not want the public to see).