This may look like other, ineffective models, but it works brilliantly. If I have a door open at night, we get dozens of mosquitos coming in the house. Now, I just place this near the door and my evening is only interrupted by the fizzing and popping as the bugs hit the elements.
As for the hand-held zapper, I didn't even know it was included in the deal until it arrived. Again, excellent. Any mossies that get past the lamp are quickly dealt with. You don't have to swat them, just slowly move the 'bat' over them as they're resting and they'll fly right into it. I'm amazed that something powered by two AA batteries is so effective. Bigger houseflies are a little more difficult to get because you don't want to be hitting walls and furniture with it. Still, the two products keep our house bug-free and our nights bite-free.