This isn't necessarily the Holidays you're thinking of - the stories here range from Halloween and Veteran's Day to Thanksgiving and a Christmas Armistice story.
The art is hit-or-miss; the first story's art is super-cartoonish and doesn't work well. The Armistice and Veteran's Day stories are much more realistic in style and more enjoyable. The Halloween story, featuring a Happy Days rip-off is definitely the weakest of the stories, but none are particularly great. Thanksgiving is at least entertaining, as Martians attack the Macy's parade and get more than they bargained for. The Christmas story just seems very tonally off for Mars Attacks stories - the idea that they would behave like Allies/Germans did in World War I seems really out of character for them.
If you're a Mars Attacks fan, you might enjoy this, but it's forgettable for anyone else, even at its short length of 48 pages.