I love the looks of them but for me, Mahogany just isn't a great wood to use on basses. The attack is dulled somewhat with the mahogany through neck construction. Great concept for guitars but I don't think it really works (for rock anyway). The neck-dive is also an issue (easily resolved I know) but for the price of them, you shouldn't need to start buggering about with strap pins straight out of the box. Why Gibson haven't addressed this properly I will never know.
The sound is OK, but for the money you spend, there are so much more versatile and confortable basses out there. I won't even start to go into Gibson's crap QC department which again, for the money they charge, should really try harder.
IMO to a certain degree Gibson are a company living off their name.