Yep it is tough......first time I used it was about 30 yrs ago.....used 6" long by 1 1/2" strips as corner glides on a wood elevator I built from scratch in a house we were building. The car was made of 1 1/2 angle iron and flat stock....2' wide, 2' deep and 4' tall, inside lined with 5/4" white oak to match the cabinetry where it arrived on the first floor. Was pretty heavy light but heavier loaded.....had to go back for the first call back in 28 yrs for repairs. Got a chance to inspect the whole job....wear bars looked essentially new......many trips up and down in 28 yrs...Doctor said he burned 5 cord/yr. When I designed the lift I had planned on a nice quiet chain hoist...like a Yale or Jet etc. but near the end the contractor and owner overrode me and bought this cheap rig which was basically a boat trailer cable winch converted at the factory to 110V.......POS.....I was displeased and had to completely redesign and rebuild my hoisting gantry......tried to 'splain that the redesign and rebuild eliminated any cost savings they thought they were getting.....as usual the ones with the $$$ won the argument......Guess what failed......and don't think for a minute that I didn't bring that up when I handed him my repair bill!!! That bill being just about twice what he paid for the hoist 28 yrs ago.......or about the same as quality chain hoist cost.....LOL!!