A lot of manufacturers could learn a thing or two from Vircru. Not only was the ordering and delivery very easy to navigate, it arrived on time, we’ll packaged with very clear instructions. I didn’t get a chance to install it on my boat straight away but it was very simple and worked immediately. I check it every day and have even used the location screen to help people find us on our berth. I bought the Launch Package with every intention of adding extra sensors. Highly recommended, buy one!