I like it a lot.
It has some supernatural creatures in it, but I like it because of the number of "non-magical" monsters. Even though some of them have some pretty way-out-there abilities, they can fit into a campaign that doesn't revolve around "Urban Arcana".
It has something for everything really.
If your game has...
Aliens, but no supernatural? The book has greys, alien probes, MIBs, Alien Hybrids, Mothmen and more.
Urban folk monsters but no aliens or supernatural? It has Bigfoot, Mongolian Deathworm, Loch Ness Monster, Mapinguari, Drop Bears, Doom Hag, Cat Folk, Giant Anaconda, Thunderbird, Hoop Snake, Yeti.
Horror? It has the bogeyman template (great for your Jason and Michael Myers types), Crawling Claw, Dread Tree, Revenant (The Crow, anyone?), Night Terror, Star Doppelganger (The Thing)...
Or the full on X-Files mix with Black Helicopters, government agents, Skin Feasters, Charred One, Demonic Machine, Montauk Monster, Infester, Crawfordsville Monster, Chemical Golem, Sewer Sludge, Robots, Litter Brute, Malleable Creature Template...
Regular animals like Monitor Lizards, Hippopotami, Wild Boars, Chimpanzees, Scorpions etc...
And finally the very D&D-esque Urban Arcana creatures like the Harpy, Intellect Devourer, Ghoul, Grimlock, Demons, half-demons, Animated Objects, Thought Eater.
The list goes on. Plus it has some premade organizations (government and otherwise) to either ally with or pit against your PCs. And a section full of quick NPCs like Attorneys, Firefighters, Scientists, Cops, SWAT Teams, Doctors, Etc. And some heroic caliber NPCs.
There's always someone around here grumbling about how they don't like a particular book no matter how good it is. Maybe someone will sell you theirs.

It goes without saying that you won't get mine.

It's a pretty versatile book with monsters from the mundane variety (snakes and mobsters) to the fantastical (harpies and demons), to the alien (sand slaves and zeikune).