I love this little lathe. It is a benchtop lathe, so there is a definite limit to what can be accomplished with it. The passthrough of the chuck will limit the size of the material both in diameter and length, but it works really well on smaller projects (which is what it is designed for). I've done external and internal milling of material as well as some boring operations. Once I got everything aligned, which you will have to do upon initial setup, it has been great.
I bought the set that included the metal gears. I have not installed the metal gears yet and have been using the installed plastic ones. When the operation gets a bit restricted, by depth or hardness of the material, I have found that the plastic gears will slip and grind. I plan on swapping in the metal gears soon.
I have purchased other Vevor lathe tools to experiment with the various operations. I've turned mild steel round stock, tube steel, aluminum, hardened steel (very difficult with the plastic gears) and Delrin. I've found that it performs well on nearly everything that I've tried thus far. Their is a little movement in some of the parts and if you try to tighten it up too much, it restricts the movement of the tooling.
Overall, I'm very happy with the purchase for my uses so far. I plan on installing the steel gears and my Vevor, 4 jaw chuck to play around with some other operations.