The oven was easy to instal, although why the manufacturer supplied star head screws rather than Philip or standard screws for securing the unit into the cabinet, I've no idea. We ended up using the screws from the cooker that we were replacing. So much for the Bosch slogan 'Invented for life'. Clearly not the kind of life I live, which has flat head and cross head screwdrivers as standard!
Other than that the oven is easy to use. Though be aware that the grill pan does NOT come with a wire mesh, so hold onto the one from your old cooker!