Well...anyone who doesn't have the signature function turned off won't believe me if I deny all knowledge, so I'll 'fess up. I'm definitely a fan. Some of their stuff is hit or miss, and I'll admit I haven't heard that much of their recent stuff, but of course Don't Crush That Dwarf is a classic, and How Can You Be in Two Places at Once should be considered a holy relic in my opinion. Given a choice between that LP and my jazz LPs, well, I'd probably better not say which I'd go with on this board...
Naturally, my favorite thing about Firesign is the way their recordings hold up to repeated listenings, something not many comedy albums can handle. And as a caveat, I must admit that I fell in love with their work back in my dope smoking days...thank goodness I wasn't a James Joyce fan as well at the time!