I just assembled the bench so I have not used it yet. I'm writing this because of the large amounts of green grease on the lifting system. There was grease on the back of the seat, the included wrench and on the boxes that the legs were in. I didn't notice this since I lifted the boxes upwards and put them on the carpet (not to scratch or damage anything). I also didn't notice it on the black seat. So I ended up with green grease on my carpet, on my hands which I touched the bench with.. grease everwhere! They should have included some sort of warning.