I heard that they are good basses and worth the money. I haven't played one though, though i might do tomorrow since im going up london to see what basses they have because Im interested in buying a new fretless bass.
From my experience there are 2 different models,the Japanese one which cost's around 700.00 $$+,Then the American model thats 1100.00$$ +.They are very similar but the biggest difference i have noticed is not the quality or craftsmanship between the 2,but the Japanse model does'nt sound as "good??".The American model has a bit more punch,but a 350.00$$ difference in price between the two in my opinion would'nt justify spending the extra money on the U.S. model.For the lower price of the 2 the japanese is the better model for the money.
The MIJ MM bass is about $789.00 new and the MIA version (which is a 5 string) is alot more. The MIA bass has a pre-amp in it designed by Fender and MM.I myself own a 4 string MM and it is a great bass.
I didnt think it was that heavy. My 70s Jazz is much heavier. But generally a decent strap can help that. I like the MM. Only played the MIJ Model but it was nice and comfy to play. I couldnt find a really nice slap sound, incredibly! Maybe I needed longer with it! Regards LA (HD's edit - deleted racial slur)