I am a new owner of a Titan 1, underwater drone, purchased it because I was not able to fly a drone anywhere in my area. So far , I have had test run number one at a lake in my area. I launched it on a nice low dock, swam on top for quite a while , then decided to dive and see what happens, well it went fast to the bottom of the lake, and i lost control of it because it was buried in lake weeds, like the monster from the lagoon. anyway I pulled it in by the tether and cleaned it off. It had got all of two of the thrusts wrapped in real fine fishing line, clogging them . It took me hours to get the line out of the props . Nothing was injured all good . Then I took it out again on number 2 trip to another lake, had a nice long swim , and did some depth hovering, and navigating, a much better trip and less weeds to worry about. I was really having fun. I realize that navigating by compass is hot easy , I was able to do some out of sight navigating, Practice makes perfect , it works real nice , am gong to have fun with it. I was able to go out on a bearing and come back on reverse bearing , Not easy to do but fun to accomplish Was able to go up to a pile and look at it, saw a fish go across the screen. Will get better , hope it lasts. .