The dragonfly is pretty stupid easy!. It comes with the only transducer designed for it, so no need to think about diff. ducers. It's so easy to run, that the computer chip that runs all the settings handles all but the most basic settings for you. Just turn it on and pick what you want to see like chart/sonar/ etc. It is really a different way to use a ff. very fun.
I paid $539. from the GPS store with the gold charts.I wanted to buy locally but saving almost a $100. forced me to take what I could get.