Summary: I recieved this Garmin 550c fishfinder and after drilling holes in my boat for the transducer and mounting brackets,and after fishing the wires from the transom to the console plus making the electrical connections, the unit never powered up. I called up Garmin and they determined that the 550c was defective and they wanted a copy of the invoice that was never sent to me or attached to the shipping carton. I called up Amazon and got the invoice e mailed to me.
Summary: I did all the research for you, this is the unit for any angler, in this price range it can't be beat !! Great picture, easy install and the video's garmin offers to help out with everyhting from install to operation are great make it very simple to use and enjoy..
Summary: Glad I choose the Garmin 550. I've used it only a dozen times purchase in nov. 2013. I'm surprised that the detail is so sharp. It's four button control is easy to set up and use. I can ID fish and structure better than ever. This is an up grade from my old Lorance x-85 black & white. I did not what GPS, side scan and other more advanced features because I didn't want to be confused by all that, maybe later. I'm 64 years on. Very pleased with this unit.
Summary: I'm writing this review on behalf of my hubby who just took his Echo 550c fishing not too long ago... He's quite pleased with his purchase! The graphics are good. He used it in a lake up here in Canada and he said it was very easy to operate... He was considering buying a different model Echo Fish Finder (like the 300c) but he's glad that he picked this specific model. Sure it's a bit more money but you get what you pay for...