I do like ornamental grasses, up until the point they become a nuisance. Such was the case with fountain grass in my walkway. It looked beautiful. And then it spread, reseeded itself all over, and locked itself in so hard it took three us us to dig out one clump. It is now relegated to one small clump in the back corner of my lot. May it grow in peace and in one place.
Other grasses I am much happier with, especially my zebra grass. It grows 7-8 feet tall and is a nice focal point in the garden.