Took me just under 4 hours to put this together - wasted a huge amount of time on the metal connection for the resistance switch, which was too short to connect. The end result is the resistance dial doesn't work and the unit seems to be on its highest resistance setting. I can't change this and probably have to pay for someone to come out from Body Sculpture to sort it, which I'm obviously not prepared to do! When I can get it moving, it is quite smooth, but it just requires far too much physical effort to get it to move around, which is a shame. It also gets stuck when both 'paddles' are level with each other. I might take it apart and try putting it together again and see if it fares any better second time around. The ones I use in my gym are £3k Body Fitness cross trainers which are double the footprint of this one and are an absolute dream to use, but obviously priced only for lottery winners, company executives and bankers. Overall this isn't bad considering other units with the same type of resistance dial can be £400 or more, but the long winded home assembly and annoyingly fiddly resistance connections put you off.