I bought a Garmin Zumo 550 last week after having TomTom on my PDA for years. Reason for the change? My PDA got wet and stopped - just when I needed it.
I looked around and the choices were Garmin Zumo or TomTom Rider 2 - the only ones which were waterproof. I also wanted one that would connect through my Autocom system - the TTR system only has bluetooth (apparently) and comes with it's own headset - which I did not need or want.
So, it came down the the Zumo. Then the choice was the 500 or the 550. The 550 gives you a car mount as well as bike, full European maps and TTS (text to speech) which means it tells you road names. I went for the 550.
It has been a steep learning curve from the TomTom system, but I am now liking it. Everything works, my phone connects through properly and I can see who is calling and the music works well.....
Alan

