IZ,
I used to love Zepplin but you know something.... I can't listen to it anymore... Its a psychological block I have put up because I was forced to listen to Zepplin every morning on my drive into work. Indeed zepp was great and any discussion of great rock bands of the era must include zepplin.... But I will pass on listening to it...
Also regarding how that band sounds... It didn't want to sound like zepplin... I thought that band was trying to be 'punk'... Punk was the anti-rock of the 70-80s...
I never really liked punk too much... But you must say it made an impact on rock music in the late 80-90s...