all it's cracked up to be

all it's cracked up to be

As good, enjoyable, impressive, or worthwhile as it is reputed or said to be. Often but not always used in the negative. I'm so impressed with my new car—a luxury car really is all it's cracked up to be! Don't get your hopes up—I've heard this roller coaster isn't all it's cracked up to be.See also: all, cracked, up