Used it a couple of times, but the "vomit comet" was not to everyone's taste, and the nett saving in time was pretty neutral for Le Mans goers, and the sailing times were relatively infrequent, compared to the normal cattle boats in/out of Calais. Plus, for any inclined towards retail therapy, the distance from the glittering mall of Cite Europe is greater....
Shame indeed, though as it just takes away another element to compete with P&O/Sea France and the tunnel for that area, for those of us for whom Dover is the most convenient port of embarkation.
MG Mark