I am actually allergic to mosquito bites and of course, mosquitos love me. I was so relieved to discover this product that isn't overly expensive yet still worked.
I dislike the scents of any bug sprays, I was tired of always spraying myself head-to-toe and smelling so strong. This stuff is just so easy to clip on without any spray and any scent. It does have a very light noise from the little fan but it is very easy to tone out.
This product has dramatically reduced the amount of mosquitos that hang around and I also have less bites. I was very surprised to see that it actually works, I recommend this to anybody who hates mosquitos (which I assume is everyone).

I started using this clip on repellant fan this summer while gardening - the mosquitos were SO annoying in the evenings before using this!

As soon as I turn the fan on, the mosquito level reduces drastically! I'm able to sit on the back patio again without going in a few minutes later due to these itchy bugs.

Apparently it's not so effective while being active, but for non-active activities, I give it 4*!