It's totally different from both of those. I mainly use the NR750 now so I can compare it with that. NRZ is very heavy in the head and takes a lot more effort to swing. Just like Mark said, if you don't get it in that sweet spot the shot pretty much goes no where. Defense is horrible for me compared to any of the other rackets I've used. The NR750 and the NRZ are very different from each other. I'm sticking with the NR750.