I am very happy with this unit. I only use it to make pasta for paticerie. I was afraid the noise level and I must say it is much quieter than the previous one I had. There is a speed retarder as we go from lvl 4-1 which will normally preserve roulement.Il there is a protective cover that I do not use as I need to incorporate the ingredients one by one to prepare my dough. me anyway I am very happy with this purchase at quality prices.