Pros - Sturdy, easy to make, chickens like it, water stays clean, lots of options.
Cons - None.
I bought the Do-It-Yourself kit that includes: three nipples, hanging wires, the drill bit, instruction sheet and DVD with even more info. Within an hour of receiving my kit, i had a clean 5-gallon bucket hung in the coop with 2 nipples installed on the bottom (saving the other one to make another container) and the chickens were curiously pecking at the nipple fixtures and quickly figuring out the WATER!!!!. I screened the top of my bucket with hardware cloth and a bandana to keep peeps and dust out, you may want to use a lid. I did not use the hanging wires in assembling the kit since my bucket already had a handle, but 3 sturdy pieces of wire will be handy for something.
It's a small envelope for $35, but the completeness, simplicity, convenience and cleanliness of this system are entirely worth it. You will need a power drill, and I do advise getting the kit that includes the drill bit, as the hole is then perfectly sized with no leaks in the finished installation.
Fast shipping - small business. http://www.avianaquamiser.com/