cannot understand the negative comments.I have a nuvi 250 which gives instructions which are almost too quick in succession in city conditions. It gives the local speed limit, my speed and a fairly accurate and regularly updated ETA.I adjust the map scale to suit the the type of motoring I am doing My only criticism is it sometimes takes you off a motorway ,usually to avoid traffic when it would probably be less stressful sitting in the traffic. Have just travelled 2000 miles around France with only a few hitches. Compare this with trying to find rural out of the way places by map.

need to update the Garmin nuvi 250 for caravaning as end up down roads when towing

Places of interest very easily downloaded. Wish it could go straight into postcode search rather than having to select a country first. Having UK instead of England, Wales and Scotland. I found the Garmin nuvi 250 pretty easy to use, user friendly.

Extremely user friendly. In general clear concise verbal instructions, backed by clear road map on screen. Device appears well made and durable. We have named our Nuvi 'Garmina'. She took us to the Alps and back avoiding the toll roads. More time taken but a much more pleasant journey. The money saved on tolls, paid for the sat nav. My wife was able to relax, instead of map reading and the projected time of arrival meant that we were able to plan our stops and still arrive in daylight. The route took us along mile after mile of D class roads passing through wonderful French villages. Much less tiring than the soulless motorways!
I was persuaded to purchase a sat nav by other peoples comments. I do not usually hanker after high tech gizmos but this is one device that I will be using and probably updating, especially as the system becomes more sophisticated and hopefully more interactive. The Garmin 250 is a tidy bit of kit and certainly worth buying.

All in all the Garmin Nuvi is a satisfactory purchase: although I'm a first time user, so have no Sat Nav experience to compare.