I have factory navi on my 2010, it's ok but not great. It's faster/easier to use my phone, I usually only use it on longer trips - use the phone for the short ones.
ALSO the audio display is way cooler on the big screen.
To be fair: between my Audi navi, Lincoln navi, and the Ridgeline's = none of them are even close to the ease of use of a $100 GPS from (insert big retail store here)