Visited there in a PA28. As mentioned earlier the standing water gives the impression that you are about to land on water. We did a low approach and go around just to satisfy ourselves that all was o.k. On take off the acceleration was normal until we reached the standing water when there was a feel of deceleration so I would recommend getting the nosewheel in the air early. We night stopped at the Isle of Barra Hotel which was excellent and on return to Oban the lower parts of the aircraft were thoroughly washed off for us.