The sisal fibre is traditionally used for rope and twine, and has many other uses, including paper, cloth, wall coverings, carpets, and dartboards.
As a carpet it adds depth, warm and texture to your home. It is quite rough in texture, but not as rough as coir. If you want to sit on the floor as part of your lifestyle then it may not be what you want. If you want a rustic look but not so coarse, then seagrass or jute maybe a better bet for you.
On the other hand sisal flooring is deemed to be very aesthetically pleasing and makes for a practical floor covering - it is one of those products that have successfully made it onto the pages of the world's glossy magazines and always seems to be fashionable as a result.