I hate the stuff, but my birds love it! Over time, they eventually pluck off all the sticky-outy bits and the rope is very serviceable, lasting much longer than cotton rope does. Also, sisal is a lot less likely to shed off 'fluff' that a bird could swallow. (My birds don't chew much on rope so it's not a worry for me, but yours might.)
If you check on YouTube and search under 'eye splicing', you can learn how to splice a loop into the ends of your rope. This is extremely useful for hanging it from perches or looping it through itself - now that I've learned how, I'm finding I eye-splice nearly every bit of rope that comes my way. LOL!
I've used thin sisal for wrapping circular swings and pvc perches. I've got a huge piece of 1" thick sisal which I'll eventually drape artfully through the big cage (not sure how just yet - but I have eye-spliced the ends in readiness

) I've hung a piece of knotted sisal (ie. knots ever six inches or so) from our suspended playgym so that Dominic can climb up there. Oh, and I've used it (eye-spliced at both ends) to hang an OpShop icebucket which is filled with shredded paper, bits of pasta, plastic bottletops, wooden chewy toys and peanuts in the shell. If the stuff you have is thick enough, you could wind it onto a straightened-out wire coathanger and use it to make an orbit or bendy perch.
So yeah. It's not the nicest stuff to handle, but it really is good for birds.