I personally cannot stand fleece or vetbed its too much work, ruins the washer, costs more in lec/washing liquid than bedding so I steer clear unless I'm using makeshift baseless cages the daily effort of brushing it down to keep it nice and to stop the piggies feet being covered in smooshed poop is too much around 16 hour work days for me, nevermind fitting in teh wash loads so if you work long hours it is something to consider many people do use it succesfully but I imagine people working less hours or part time may find it less of a challenge to keep on top of. I love fitch and finacard, high quality shavings are alright too these last a full week with the depth I put in. and it takes 20 minutes once a week to clean the cage vs 20+ minutes a day plus shaking/brushing/washing it to get it clean :-)
I do use fleece for litter trained bunnies and for them it does work really well though.