I think this product is fantastic! Works nearly aswell as the Gym product. Several levels, also automatic setting which increases and decreases variably. Only complaint would be, as others have mentioned: allignment of nuts and the fact that it needs x2 AAA batteries for the controls(it works by remote, whilst powered by mains)which is not mentioned. For £200, very good price. For £50 which I bought it for, BARGAIN!