The Vac-Hanger is ready to go into production. The only hold-up is the current travel restrictions. Once I am able to be at the factory to handle things personally it will be a few months to complete the kit and then to ship and stock the shelves before the pre-launch to the SFM list members. There is no comparison to any of the brands that you have mentioned. Stealth sets a whole new standard for this category of device. This is not an opinion… it is a simple fact. You can sign up for the newsletter to get early launch notification.