What I like about them is the lack of fluff. I adore cotton and linen for most purposes, but they don't half leave a lot of fluff about and I have enough dust bunnies already. Microfibre is especially good for tiles and windows and you don't need to use chemicals with them, though you can if you want. I did try a microfibre towel too but wasn't impressed. Cotton is more absorbent and has a better 'grip' on skin, I think. Blether blether. oh yes! you can wash boil them too should you feel the need. (If your house gets as skanky as mine you might need to
).