Summary: I have a Tom Tom Go 700 and a Go 900 too. I decided to buy a new Nuvi 880 on E-bay because Tom Tom wants too much for Map upgrades. I simply chose to put my money towards a newer and more modern and more compact unit. I am very disappointed with the Garmin Nuvi 880 because I can't hear the voice instructions at 100% volume. The Lady speaking sounds like she has a mouth full of Peanut Butter or something else in her mouth, maybe ****. I have never used Blue Tooth.
Pros: Amazing speech recognition.Works 99% of the time if you speak slowly and clearly,Bluetooth
Cons: Very weak FM antenna,extremely weak internal speaker,doesn't show upcoming turn on top left corner of screen like cheaper units,only if you change screens.Computes slower than 260w when mounted side by side.Car on screen smaller than other units.
Pros: None- to me video games, MP3s and Audio books are no substitute for core functionality
Cons: Makes you drive to a "highlighted route" to start, only gives one direction at a time, informs of lane changes too late, when merging freeways does not give N,S,E,W direction until too late to merge