I have a norvise, the learning curve is long. But give it time. Watch norms videos and then put them into practice. I have been tying for 20 years and am still learning everytime i sit at the vise. Is the norvise perfect, no but it can do alot. And if you follow the techniques it can be very fast .
It seems easy when you watch norm but he has been working on his vise for the better part of 30 years. You have to be patient.