i have had this a little while now and for the amount that i use it, it is very good. If i where to use a rolling machine daily( heavy usage) or for heavy duty metals i would upgrade. However for my small business of jewellery making it has proved to be very good and a worthwhile asset to my tool collection. it is also a good one to start with to see how much use one would get from such a workshop tool and before throwing hundreds or thousands at one of the better ones. The rollers seem to be quite well aligned and i have had not problem with warping of the metals i have put through it. The screw for adjusting the rollers is very wobbly and i initially thought this to be a problem but it isn't. it is just the build, and works absolutely fine. perfectly good for the money