Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: Summit Mosquito Dunks
Review: The product arrived promptly and at a very good price. The dunks are easy to use and seem to be working; we have not seen any mosquitoes yet, but it is early in the season. It is good that the dunks are biological rather than chemical controls, in case there are any useful organisms living in the pond.
