Got myself a Quest a few weeks ago. Paid £430 on Tottenham Court Road, so dealers are discounting them fast...
Im new to GPS, so my first impressions really are First Impressions.
1. The Quest is tiny, as in mobile phone size. So is the screen - useful and conveys the information necessary, but difficult to read street names etc (at arms length anyway).
2. Fairly quick to calculate/re-calculate. I dont have anything to compare against, but it averages between 5 - 10 seconds to recalculate a root which is ok for me.
3. Good battery life, 20 hours is a lot of riding. But no motorcycle power/audio lead or mount yet.
4. As above, no voice on motorcycle as there is no lead yet. Though you can customise the provided car audio/power lead if you so wish.
5. Waterproof and has survived two drops (so far) from my clumsy, butter fingers.
6. Easy to use hand held. Slips into a shirt pocket.
7. General observation from a GPS virgin - journeys are now much less stressful. Just concentrate on the driving and keep an occasional eye on the countdown timer on the GPS.
8. Fast transfer of mapping data via USB 2.
All in all, I think the Quest is a useful tool for those wanting a portable GPS solution which can fulfill a number of roles.
HTH, Mike