GN:
I cannot speak for Dolphin but the new unit with lasers looks cool. I have the Blue Diamond with wireless remote and split rollers. In SOME ways it's primitive next to the Dolphin Dynamic I had, but cleans the pool in 3 hours instead of 8, and has a much simpler, yet just as effective bag. And the motors are each 3x the size of the Dolphin's, but the unit is far lighter. I have to take the ladder out for the Blue Diamond (not the drop-in steps) which I didn't have to do with the Dolphin, but that takes all of 15 seconds. The remote on the Dolphin is a true joystick and you can see what you are programming. Not on the Diamond. Despite that, the Diamond cleans better and faster and my personal experience is their service is far superior.

Carl