I too received a set of PUG Gizmo's for Christmas.
They look good.
I paid an extra $10 to have velcro sewn along the top edge so I can attach it to the roof prior to lifting. It keeps it tunked under the lip of the roof so the rain cannot get under the PUG.
Cannot wait to give them a try.
I previously used refletix for the bunk end roof tops but found that they rolled up rather large and took a lot of storage space. I used to store it under the dinette table but the new unit has a smaller square table and they will not fit. The PUG take up much less storage. I think they will work out well.