Pros - Economical heat, chicks LOVE LOVE LOVE them. Simple to clean, use, store, and versatile in how you use them. Sturdy. Priced right. I recommend them to everyone. I loan mine out and then they buy their own.
Cons - Can't think of even one. Maybe that I'd like to own at least two more of the two bigger sizes.
These are fabulous. I use them for the hatchlings, the singletons that need their own crib, and or older birds that need some TLC. I double and triple stack them in the brooder for entertainment and for the chicks to pick a level to sleep or perch. Marvelous. I stopped using the clear stick-on plastic as they clean up easily and nicely. Buy as many as you can afford. I have 5 so far would like 7 We have raised 100's of chicks with these plates. I actually have three plates stacked now. They love it.
Pros - Keeps chicks quiet and warm. They stay quiet mostly all night. It's safer. An extra temp control cord can be added and it's alot less expensive than Brinsea
Cons - maybe too small for alot of chicks but there are more sizes.
This thing is nothing short of magic. It's my first time trying it and last time trying anything else. I love that they can move out from all sides. My chicks end up scooting and still sleeping far from it and still seem comfortable.