I am a bit biased as Ellison is one of my favorite fiction authors. There just aren't that many writers with the sheer breadth and stupefying imagination that Ellison possesses. This massive collection of his short works is nearly beyond description. It contains such a staggering number of profoundly rich stories that it absolutely blows the mind. Some of the works included, such as "I Have No Mouth and I Must Scream" are so disturbing they leave permanent marks. Others, like "'Repent, Harlequin!' Said the Ticktockman" draw you in so completely and really make you think.
All in all, a little something for everyone in this tome and it's a great book to have on the shelf to pull down from time to time to re-immerse yourself in his hyperimaginative bizarro worlds.