I’m kind of partial to TomTom.
I made my selection based on ease of use and the ability to update and customize my preferences.
No GPS, from what I understand, is 100% ie. points of interest may be off a few feet or greater, but very few things prevent the user from getting from point A to point B. I would suggest you continue to read user reviews and go to your local electronics store and play around with a few display models. (Most retailers honor a return policy if you’re not satisfied.)