It's cheap and cheerful, for the money it's bloody good, I ran a dti over it and it was within 0.01mm on X,Y&Z. edges needed easing as many youtube reviews have said, The base was pretty good I ran a stone over it and although not absolutely perfect I wasn't concerned about anything. The jaws I will probably replace as when the vice arrived they were ground flat on the top, I assume once assembled. once taken apart there is no repeatability. I had to jiggle them about a bit to get them back trammed with the dti. but hey ho it's not a Kurt and not a Kurt price. I can't really comment on the swivel base as I only checked for parallelism. for the deg if I wanted accuracy I would use a sine bar anyway. One thing I did notice was 0 deg started underneath the screw, making 90 deg to the side where there is a mark for setting, no problem for me though. I have the vice on the bed with no base, used my own T nuts and bolts as they were better. For the money it is very good value in my opinion, and would not hesitate in purchasing another should the need arise .