The game is okay but the functionality of warehouse really sucks. Each level you can increase the storage only by 5 and it is not enough to make a progress. There are lots stuff in your ware and the only way to get out them is to sell them on global exchange. This method also time-consuming and unpractical because most of them are rarely sold. In a nuthell, if you are about to exceed your warehouse capacity,you are stuck in this game. Please bear in mind !