Usually when I see something like Ultra Catch or Virtual Wall I just dismiss it as marketing. The reason I bought the Home Spider Infestation Control Pack was the price. (The price was even lower than the insect monitors that other places sell, which only have half the glue area).
After receiving the Smart Spider Traps I knew they were different from the time I remove the was paper. It was almost a battle to get the paper off... The Ultra Catch glue was practically sticking to the wax paper!
Using these traps is simple, and they are printed in a reasonable blue so they don't catch your eye from across the room.
I used them in my cabin in Vermont over the winter, using the virtual wall (which is attaching the 3 or more traps tab to slot ) approach. Actually I guess I made a virtual room. Spiders normally crawl in under the door way so using 3 virtual walls I boxed in the front door when I left the cabin (so I could still swing the door open without hitting any traps)
When I returned in the spring, the traps were covered in spiders, mostly on a straight course to the center of the room, but also several along the walls where they are expected.
In short I was shocked... Virtual Wall and Ultra Catch are really good descriptions. So I have ordered another infestation pack to put up another virtual room when I am gone.