This is ofcoarse not Zeps greatest album. Nonetheless it contains great songs. But if you compare it to for example LZ II it just isn't that good.
The album starts of rocking with In The Evening and its a great song.
The next is South Bound Saurez, which is a song that I just don't understand. Its average i guess.
Fool In The Rain is not very typical LZ, but has a great riff and a good vocal prestation from Plant. The drumming is also great.
Hot Dog is a behated song, but i love it. It shows that LZ had a great sense of humor, and it actually is funny. If you don't like the song, you don't like the humor.
Carouselambra (or whatever it is) is the only song that I actually don't like on the album. (But maybe you will?)
All Of My Love. Nice ballad, good lyrics. Its an OK song.
I'm Gonna Crawl. This song reeks of blues and its simply awesome. Maybe not as great as LZs earlier bluesy stuff, but it still makes skivers go down your spine.
All in all a good album and worth buying. But if you don't have the earlier albums buy them first.