I have read bits of Judge Dredd over the years, mostly by way of crossovers like Batman / Dredd or recent one-shots, but I never took the time to go back and read the stories from the beginning. When I saw this omnibus come out, I decided the only way to judge the Judge was to read the series proper and it was a good call.
For those unfamiliar, Judge Dredd is the central character in a long running comic series out of the U.K. that is set in the far future where most of the planet is a wasteland and the few remaining cities are overpopulated fortresses called MegaCities. Within these cities the rule of law is contained within the Judges, computerized cycle-riding individuals who carry out sentencing and execution on the spot. The most recognized Judge is Joe Dredd, a harsh dispenser of law and order.
These books are an interesting mix, as they really are sustained by breakneck pace more than character development. In many ways, they are the polar opposite of a series like The Walking Dead, which is all about the people and less about their world. With Dredd, the world is really the story. This is hard far future sci-fi, with cities that are completely computerized and rampant with robots, a colonized Moon and Judges that can fire heat-seeking bullets from their guns. Most stories are short, especially in the earlier runs where the criminals were found and stopped within 6 or 7 pages. That's not a criticism, though, the artwork and future-shock feel of the Mega City makes these stories great short burst reading. Later in the volume the stories begin to get bigger, with cliffhangers and longer lengths. The artwork throughout is also solid, especially Brian Bolland who is a fantastic illustrator.
As for Dredd himself, it's easy to see why he's so popular. While he's not the deepest of protagonists you'll ever read about, he has a code and he sticks to it. I think Dredd the character is like comfort food, no matter what's blowing up around him you know he's coming through in the end.
If you like action mixed with sci-fi that's not too worried about being realistic, Dredd will appeal. If you're going in looking for deep insight into the character and some exploration of why he's the way he is, look elsewhere. This is simpler stuff, but that's not to say it's not great reading.