It`s a difficult one, I`ve not bought any items that haven`t been any good, but have bought some that I`ve sadly found don`t suit me due to my rickety body, rather than for their "goodness" as musical items. I refer to a rather stunning white/maple US Precision which I bought, at 8lbs-ish I thought I`d be ok with it but have found that as well as weight, the scale length is a big factor for me now. So that was def the worst. Best, a sub 8lb CIJ Fender Mustang Bass, great instrument and a weight I`m fine with at the moment.