First, their customer service is great. I can attest to that as I've used it. I'll get into that in a minute after I go over the positives.
The feeder is excellent. Chickens love to throw stuff around, there is no waste whatsoever with the feeder, the cheap hanging domes one will cost you a fortune in food. With that said, they also like to scratch for food, so maybe not so much is lost.
I mounted both the waterer and feeder onto a 1x4 and mount that to a wall so I can easily remove them. I have my coop built onto the side of my planting shed and am able to feed and water through an interior window, without entering the coop.
I started with 14 hens (lost 2 in 4 months). When I need to leave them cooped, this setup provides about 24 hours of food and water for them. I have not yet made it to the winter watering nipples, so I cannot attest to those, but the watering cups are the big downfall of this product.
The watering cups have a tab on either side which clips into a hole on the piece attached to the container. There's a spring that keeps the cup filling/from overflowing. The cups pop out way too easily. When the cup pops out, you'd think no big deal, but it empties the water contents into the coop. Making matters worse, finding a 1" spring amongst the bedding material is next to impossible.
I had one waterer completely crack down the face. The company replaced the unit at their expense, told me to keep the broken one, and sent a couple of new cups. I am on my last one now. I'm finished with this waterer when the final spring is lost or cup breaks.
Their customer service is excellent. I sent pics of my coop and they made suggestions to move around perches in case it was the birds jumping down onto the cups. This was done prior to receiving the replacement product. Overall I think it's a great product but you need to have a really big coop where there is NO chance of them flying into the cup. My coop isn't particularly small, about 48 square feet.