This is not my first time using this product. I love it. I live in an apartment in an urban city. It is on the ground fl6and this spray takes care of all the indoor/ outdoor bugs that plague us: roaches, ants, spiders, black beetles, daddy long legs, centipedes, silverfish, lady bugs, and bed bugs...and keep them away for months. I exterminate weekly after sweeping and mopping the entire apartment. Then wait 24 hours before mopping again. Twice a month I dust and clean cabinets and drawers mostly because find dead critters that are hiding and spray some more. I will try the black and Gold label next time, I am sure I won't be disappointed if it is a stronger solution. This stuff works. I highly recommend it. Along with following the advise on the brochure...should also state that it helps to put dirty clothes directly into a plastic garbage bag until they are clean. I use totes to store my clothes as well. One encasement is not enough. I have 2 on mattress and 2 on boxspring. Check for rips in plastic. Bed bugs can live 18 months without feeding on human blood. So make sure the mattress and boxspring are sealed well. Duct tape or crazy glue on zippers. Spray zippers when exterminating too just in case.