The compost bucket of Graf gets me unfortunately only 3 stars because it is not firmly closed. The lid closes production due to material default not round off, thus have mosquitoes and fruit flies lay easy game in the shortest time their maggots in it. To prevent this, I have the cover with 2 rubber fixed (temporary solution) to ensure complete closing the lid. Actually, the cover should have a locking lug, so that it can be tightly closed.
