At first, the quote seemed a little exspensive, so I got two more. It was the cheapest of the 3. I questioned why it was more than a system my friend had installed from Maplin. The engineer showed me some recordings from other installations he had done and demonstrated the Software for the PC and Phone. He Suggested I go and compare the differance with my friends system, what a difference. I went with the quote and I am very happy with the job done and the system, especially at night. My friend is relising that the system he has is not so good after all and looking to upgrade to a system from QSX Security soon. Mr Green - Cambridge.