i am a user of fleece too,i have all 13 of my boys on it,i change them every 2 days and do daily spot cleans,boys are considered stinkier than girls but i barely smell a thing with mine,
i have newspaper then towel and then double layered fleece,half of mine are also toilet trained so i get even less mess,its perfect,supersoft on there feet,looks great,good for pigs with allergies or hayfever(one of my boys has this and it is fairly common)also much easier to spot changes in pee colour which can be vital in detecting sick piggies, and apart from a small amount of money to wash it isn't an ongoing expense like most other things are,i find tnick fleece best,it ideally should be washed at least 3-4 times to break down the invisible barrier before use,never ever use fabric softner on it and i have found washing on hotter than 40 degrees celcius can wreck fleecexxx