Used extensively since purchase (delivered in 3d) on a very difficult terrain (left fallow for many years), in which mingle molehills packed with time and become tall grass straw. Although it is relatively heavy and should in my view be appropriate for a "normal" field as-is, we use the top tray to weigh it down with plain tiles (in total about 15kg more distributed over the surface) that has made all the difference with its use "as-is". The assembly is not "extremely easy" but not too much complex. It's a good product.