We bought a Mark 2 X cross 450 step through a month ago, and have been very happy with the bike so far. The bike was delivered direct to our door fully set up and ready to go. It was great to know that the experts at Mark 2 had set up the bike and added our own specific requests, and that we can contact them any time if we have a problem. The bike is very solid, well made and comfortable. The electric assistance is brilliant, progressive and powerful when needed. The bike is heavy, although not as heavy as many electric bikes, but this has the effect of making it feel safer for my wife. Anyway the electirc assistance means that weight isn't an issue.