For the moment the empty holds well, the valve seems to work even though it seems that there is an indicator to tell that the vacuum is total, I have not seen. C The only concern is that the amount of laundry that we can put really depends on their type. Perhaps the gain is 75% for comforters, but I following the instructions I have completely filled the inner bag of clothes and not that does not fit into the outer cover. So we had to assess eye roughly the level that would have the batteries once a vacuum. I think for clothes is reduced by 1/2 to 2/3 volume, but I have a coating that does more and does not have shut able to find or fill up is pretty annoying. Otherwise we end up with a large mass of vacuum machine which closes and no longer passes under the bed However, it is true that the gap seems to be and that it remains in place.