On unpacking the bike, it was evident that there was a substantial amount of scuffs/scratches on the plastic casing below and in front of the saddle, which could not just be polished out. when. Put the bike together, using instructions which were much less than clear. On testing the bike and using the pulse monitors, these were no use at all as they gave completely erratic readings, both very much above or below the actual pulse rate which was taken at the wrist, by my wife, a medical doctor. As a couple in our seventies, we purchased the bike to use regularly to enhance our fitness, and a significant part of this is to be able to monitor our pulse rates to ensure that the achieve our maximum for age recommended levels. With the unreliability of the inbuilt pulse device it would be very easy to exceed the recommended maximum and do damage, possibly quite serious damage.