Pros: small footprint, maintains humidity, easy to drain, worms like it
Cons: Worms can squeeze between walls of levels and escape
I started with a home-made bin from Sterlite type containers and this one is definitely an upgrade. I like the ease of dealing with the 3 levels I got and adding food and cleaning. Problems I have had are worms falling through the bottom and clogging the spigot - fixed by putting a layer of garden cloth in the bottom of the first level. Also the worms squeeze between the walls up from the bottom levels to the upper levels to get to the food when I feed them. They smell it I guess, and go toward it, but they end up on the outside and the worms below prevent them from going back down. This has only happened when I fed them late in the day and they were left to their own devices in the dark overnight. When I feed them in the early part of the day, they don't go toward the light on the outside & just use the holes designed for their migrations between levels.