The units have been reliable, quiet, and easy to distribute throughout the house. I have already recommended them to my sister because her kitchen has the same seasonal ant problem we had. I would choose this pack again.
I used to reach for insect spray every time I saw one bug, and the smell bothered everyone. Since installing these, sightings have become less frequent, so I am spraying much less often. That is the biggest benefit for our home.
Nothing dramatic happened during the first week, which made me doubt the purchase. During the second week, I realized I had stopped seeing bugs near the pantry and hallway. The change was subtle enough that I almost missed it.
The set is not expensive considering how many rooms it can cover. I have seen a moderate improvement—not perfection—but the devices are quiet, clean, and reusable. For the price, I consider that a fair result.
Small flying insects used to circle my desk lamp at night. I plugged a repeller into the outlet below the desk, and that specific problem has almost disappeared. I can work late without constantly swatting at bugs.