I have a crapload of LEGO Star Wars vehicles. Next to the Millennium Falcon, this one is by far my favorite.
If you know anything about AT-STs, you'll know that one of the "cheek" turrets is a twin blaster cannon and the other is a concussion grenade launcher. That is something that the original vehicle did not try to replicate. I, being a professional Star Wars nerd by the age of 2, was always bugged by this and am always happy when other AT-ST toys make note of this subtle difference.
I haven't bought much Star Wars stuff lately, but I was glad to add this one to the collection.