Had the misfortune to but the Viavito Sina cross trainer a while ago and have had nothing but trouble with it. It creaks, clunks, squeaks, and is unreliable, borderline dangerous. The fixings on the front stabiliser were loose creating a horrible content squeak, and made it very unstable. I contacted the Viavito 'customer services' and was treated with nothing short disdain, and was given a random web address to get spares. Needless to say this website did not stock any Viavito products. Absolutely the worst purchase that I have ever made online. I am very annoyed that I have to give it 1 star on this review