Product review (4 stars): Better than what I was using but...
It was not clear that the holes on the sides of the bags are for the purpose of affixing them to the buttons on the side of the trash compactor.  I did not understand this until my son pointed it out.  Now the bags stay put and do not "collapse" with each compacting.  The only improvement I would look for is some handle/ties to make the bag easier to remove and carry.  It gets pretty heavy and once full, it's hard to pull it up, seal it with the accompanying twist ties and carry it to the trash bin.