I have the second version of the LB... Its pretty darn fun to shoot with
Is it the best thing since slice bread... um no...
Is it the up to par with Canon Ls... um no...
Is it worth hating... um no.
"crucial artistic tool??" Hmmm.... I vaguely remember a photographer selling less than perfect prints successfully. Prints made from a light leakin, low quality, plastic lens, POS of a camera we all know as the Holga.... Anything and I mean anything can be an artistic tool.. right?
Seriously... It is a novelty item for photographers. I've certainly had enough enjoyment out of the lens for the low price of admission. Certainly a WHOLE lot more than the typical crap lens in the same price range (50mm f1.8 zippies excluded).
After all.. isn't that why most of us shoot.. to enjoy? (haters probably need to calm down and shoot more)