bought this combo (at a higher price than currently advertised!!!). they were relatively straightforward to assemble, which i did on my own, but i am a veteran ikea builder! one bolt would not screw in, but i found later that is was because the bolt had grit in the grooves. the cross trainer is fun, but light, so feels a little unstable when you really get going. the bike is what has really let it down. nice to assemble, but something inside clicks with every time i do a revolution and the thought of diassembling and having to try and put it back in the box has totally put my off complaining about it, but it is off-putting. i am 5'4'' and it seems ideal height for me.