Solid. Stable. Did have to lap the ways in a bit. Others said they disassembled it. I didn't. I oiled it up, then used my drill and socket adapter to run it back and forth many times. Wipe the oil and metal crud off, oil it again. Adjust the slides taking out the slop and run the drill some more. The slide ways will self lap. Do enough to use it, then it will just keep getting smoother with time and use.