There were a few negative reviews on
Amazon.com, but I remember reading about cracking elsewhere too. Sorry, no links.
Amazon reviews need to be taken with many grains of salt....and were the applications detailed(used on coop floors in frigid climates?) Preparation and curing is often to blame for failures.
I realized that a true "composting" deep litter will not go well up off the ground, but I am thinking more in terms of the Carolina Coop videos on YouTube where they use "dry" deep litter bedding for the chickens, not composting deep litter.
Ah, I see. Have seen that one, not sure how well it might work. The terms 'deep bedding' and 'deep litter' are often misused and misunderstood...chicken 'buzzwords'.
Lots of different ways to bed a coop and manage manure.
What kind of bedding you use may depend on how you manage the manure.
This is about cleaning, but covers my big picture
-I use poop boards under roosts with thin(<1/2") layer of sand/PDZ mix, sifted daily(takes 5-10mins) into bucket going to friends compost.
-Scrape big or wet poops off roost and ramps as needed.
-Pine shavings on coop floor, add some occasionally, totally changed out once or twice a year, old shavings added to run.
-Runs have semi-deep litter, never clean anything out, just add smaller dry materials on occasion, add larger wood chippings as needed.
-Nests are bedded with straw, add some occasionally, change out if needed(broken egg).
There is no odor, unless a fresh cecal has been dropped and when I open the bucket to add more poop.
That's how I keep it 'clean', have not found any reason to clean 'deeper' in 5 years.