G.A.S sleeping beauty

i just purchased a G.A.S. sleeping beauty mc cartridge. it is unopened and never used. i have heard good things about this cartridge. can anyone tell me anything about it? or has anyone ever owned one
I owned one many years ago in another time,place and system. Properly impedance-matched to the preamp it is/was a very musical cartridge. I would suggest that you properly install and align it in your system and give it a listen. You might just really like it. Hopefully, as old as it is, even NOS, it hasn't suffered any degradation of the elastomer suspension of the stylus.
Bought one of these NOS from JM Sound about a year ago, like it as well as anything I own.