Came flat packed in a huge heavy box but despite the lack of a 'man about the house' I managed to put the thing together single handedly. The instructions are clear and easy to follow. It does come with a couple of allen keys and a couple of spanner tools (like the ones you get in a bicycle repair kit) but I would recommend using proper spanners, much easier on the hands. I do have a couple of washers left over - no idea where they're meant to be!
I spent 40 minutes on it today alternating step and cycling and certainly felt like I'd had a good workout. The display is large and easy to read and gives you the usual speed, time, distance, calories, heart rate readings etc.
I am still trying to find the optimum position for my feet on the huge foot pads in both modes but I think it's just a matter of getting used to it. It's a pretty solid piece of kit but does creak a bit when being used, not as robust as the machines you would find in a commercial gym but then it's only a 10th of the price! It felt stable even when I was cycling like a loon and I think if you go round it occasionally to make sure all the nuts and bolts stay tight it should do the job.
Overall my first impression is a good one.