Very slow. Mistakes bends for junctions and the anaemic display colours make it unnecessarily hard to work out what's really going on.

Fiddly to setup and then I can't get anything other than a robotic voice and an all but useless display. The app won't allow me to enter my full address (doesn't allow house numbers) and won't accept my post code. It's a cloudy day and the GPS fix keeps dropping out momentarily - I don't need to be told immediately.

There's nothing that comes close to this app. For functionality and ease of use it can't be beaten. The road goodies are a childish distraction and I'd love to see the option of off-line maps, but even so....

I had a working satnav system - 24 hours and one update later I have an inferior UI, a screen cluttered with so much information I can't read it, no audible speed camera alerts, an inferior system of confirming road hazards and a system that crashes. A couple of weeks later it's so unstable it's unusable - if Google's takeover means such buggy software is being released it doesn't bode well.