Personally, I found E&E's pretty helpful, but they shouldn't be your only source of review or completely replace the textbook.The usefulness of an E&E heavily depends on how your professor teaches the class. For example, my Civ Pro teacher actually recommended the E&E and it exactly reflected what he taught. Whereas in Contracts, my professor heavily favored the Restatement over any other authority, and the Contracts E&E would discuss the UCC at great lengths (you'll learn this nonsense when you're in school, don't sweat it now). The Torts one was decent, and I personally found Sprankling on Property more helpful than the E&E. But the main point is that 1) it depends on how the professor teaches the class, and 2) it is a supplemental, it doesn't completely replace a textbook / hornbook.
After I finish all four, I'm going to buy the LEEWS method and "getting to maybe". Are there any other books you'd recommend?
You only need two books for 0L:Getting to Maybe; and Law School Confidential.