I used the TomTom Rider v2 for my recent trip of France & Spain. 99% Happy with it - the 1% i reserve because on 1 occasion it took me through the same toll booth 3 times in Spain!!

(Much to the amusement of the Spanish toll operator who let me through for free on the 3rd instance lol

) But in fairness the roadworks had yet to be completed.

As far as being robust - i rode 10-11 hours a day in the p#ssing rain for 3 days without a hitch!

Has most (if not same) features as other top motorcycle GPS devices.
[Edit: One issue i did have was that sometimes the screen was hard to see depending on the brightness of the sun - but if your using the voice then you'll be fine]
Ian