JadedTraveler - my recent (last two weeks) experience of the nuvi 370 in Ireland and roundabouts was the opposite - the roundabouts and exits were spot on - in fact the only time we went the wrong way was when I miscounted the exit number and exited too early.

We generally found the nuvi an garmin maps excellent. One or two small instances of changed roads (overpasses where roundabouts used to be apparently), but other than those we were very happy.