The green culture compost bin is a good size, light-weight and assembles easily. There are lots of air vents for circulation and it allows for fast decomposition.The lid is tight, which is always good, but since the unit is so light, I keep partially lifting the composter off the ground and had to design a way to stake the base of the composter into the ground (Plastic tent stakes and a few drilled holes did the trick) 

There are no moving parts or roller, which is perfect because I have seen people have many problems with the higher tech tumbling composters. 

again the only problem I have is keeping it firmly attached to the ground.

Pros: Easy to put together, simple design, very durable
Cons: Becomes dislodged too easliy unless you stake it into the ground