Does anybody have any love for the band Mountain?

It seem everybody thinks they are a one trick pony with 'Mississippi Queen' as their only work. Personally I think 'Theme For An Imaginary Western', was as good as any Prog work being done in that time. And 'Nantucket Sleigh Ride' was very good too. 'The Boys In The Band' was very strong also. I remember seeing Richie Blackamoor of Deep Purple saying they were a revelation when they first came on the scene. Any thoughts or put downs.