I bought a pair of Jacob Cohen blue denim jeans (the top of the range model) on sale in Verona Italy in Jan 2013, for 50% off, paid Euro ~160 (after VAT refund). They look and feel great. No regrets. I am also a Levi 501 wearer for 30+ years!! (not the same pair!!!!) 8^)
The only problem with Jacob Cohen jeans is the protruding front close button (with the letter J on it) - the botton constantly nudges the belt buckle out, so much so, that I stopped wearing belt with Jacob Cohen jeans completely.
Sometimes a belt is required with blue denim jeans (when wearing a blazer/jacket, for example).
In this case I don't wear my JC jeans and go with Levi 501 option which takes a belt very well.
Any 'belt ideas' for Jacob Cohen jeans are welcome.