5.0 + Maybe (?) my favorite record in LZ's incredible discography. This one's got almost everything: super-charged blues rock ("The Lemon Song"), balls-to-the-wall bangers ("Whole Lotta Love"), crazy mid-song breakdowns ("What is And What..."). Also "Ramble On" (still not sure how Bonham gets that tappy-tappy sound on the verse!?!). Not a dull moment.