The best damn drug out there. It's psychologically addictive, meaning you'll probably think about it a lot, but cocaine
doesnt have any physical withdrawal symptoms like alcohol and heroin. Also very expensive, usually $40 a gram is straight ($100-120 for an 8 ball) but if you're getting some fishscale paying $50 a gram is still worth it ($120-150 a ball).
Good coke will make you hornier than E, calmer than weed and it'll make you really focused. Be warned tho, some dealers like to cut their white with meth which will make you really hyper. An experienced user will be able to tell right away, but if you're new to coke be careful who you get it from.