Cleanly kills bugs but is a little flimsy
The Racket Zapper is certainly the cleanest fly swatter I have ever used. It doesn't require hard contact with bugs and another object, making it possible to swat bugs right out of the air. Cleanup is as easy as shaking the zapper over a trash can.

Minus a star for being rather flimsy. My zapper arrived with a slight crack in the plastic, though this does not seem to affect functionality.

o.k. but there are better ones
This bug zapper works all right, but the "safety" guard over the actual zapper keeps larger insects like wasps from getting zapped right away.
I prefer the immediate "touch and die" of the Charcoal Companion Amazing Bug Zapper which I bought at the same time. However, it "stings" if you touch it while pushing the "on" buttons!

flies are smarter
perhaps the flies are quicker and smarter than humans.....you have to be Martina Navratilova to catch a damn fly with this thing. but great for upper body exercise.

Amazingly - it worked!
I had many frustrating efforts to get rid of the occasional flies that got into my house (if filmed, some of these efforts would have been big hits on YouTube.com). This racket-like device actually worked -- and NO scary chemicals!

great!
We bought this product over a year ago and love it! There is some satisfaction is hearing the flies pop and sizzle. it is very sturdy and we haven't had to replace the batteries yet.