I too am interested in the Blue Diamond/Aquabot Turbo T4. I have been a Dolphin user for the last 3 years but if it's better I'd buy one. It doesn't look well thought out though. The cart looks cheaper, the power supply has a big antenna on it and no joystick on the remote are just a few of the things I noticed. I'd also like to see a video of how it changes direction. I look forward to more reviews.