Compared to my old Dolphin Diagostic it's:
- Much lighter
- Filters water that drains back into pool upon removal of unit
- Caddy ensures that rollers don't compress on one side
- Very quick cycle (2 hours on long cycle is far better than Diagnostic; also has 1 hr quick cycle)
- Very effective coverage of pool floor.
So far only con is that Bluetooth connects/disconnects randomly. Not deal-breaker but I'd like the connection to stay on.