Does Riddex Or Riddex Plus Really Work?

It does work, I had ants and was starting to get roaches, now I do not see any. Also this device doesnt just work by itself, if you read the instructions for best results, your suppose to have a trap along with it to catch anything b/c it  just drives them away. If you have nothing to catch it with like sticky trap then they just be driven to another part of the home.

In my experience, it works selectively. We set out cockroach traps and turned the unit on. For a few days, we had a lot more activity but afterwards the roaches were gone. Spiders on the other hand seem to be immune. Most recently, a colony of tiny ants appeared, crawling out from behind the electrical outlet where the was plugged in.
Note that this site's software treats the brand name as a spelling error so that it can't appear in the answer!

Everybody says that it doesn't work

I have not found one of these things to work as advertised. Over many years, someone comes out with a NEW device to chase bugs, mice, ants, and other pests away, but none of them ever work. Good luck and happy Blurting.