I think Good Knight is the company we all use to control mosquitoes since last many years.and It was effective before not now.I have recently bought this product from a shop near me.In the area where I live, there are so many mosquitoes.so I bought this product.but when I used it I realise that it is not so effective that good knight promises to the consumers.after using it for a whole day I had to irritate by the mosquitoes.it is not a good product for me as it doesnt give the best results.and the refill is not lasts long.
User friendly-it is a user friendly product.just fix it with the electric socket and on it.u have to refill it after every 15 days.so I will give the product 2 stars only.