If you like the blues electrified, this is the album to have. It's one of the first albums I ever bought in 1969 and it hasn't lost a beat. Imagine playing this along with Cream's Disraeli Gears. It makes your head explode. Led Zep is just as good in person as they are on the record too. Wow, if you don't have this album, you're missing out on some great blues-rock.