I use it and find it sooo easy to muck out - my horse is quite dirty but the bedding doesn't stick to the muck so you don't end up wasting loads! It is mega absorbent as well.
I use nedz advance - it is quite expensive but lasts for ages so it works out more cost effective when you work out that I put in one bag a week in winter whereas was needing two bales a week of previous bedding - at the moment as my horse is in during the day and out at night I have been putting in one bag every two weeks - he is on rubber matting though. I use it alongside another chopped straw product in the banks and have the advance on the floor. I have never had easier mucking out and it is extremely absorbent - plus you take out such a small amount you end up wasting less!
Anyone know if Nedz advance are the only straw pellets available? Will a horse eat them and do you have to have rubber mats or can you use on concrete floor?