We go over every year for a long weekend in the +4. We always take the Portsmouth/Fishbourne route and have never had an issue. However, worth noting is the condition of some of the roads on the Island, leaves a lot to be desired. They did undertake a major road re surfacing exercise in 2015 but they must have run out of cash as although some had been made very nice indeed, there were still some horrors when we were there last July.