If it doesn't sound good right out of the box odds are it never will. That goes for everything. Even cartridges. You should be loving it from the first side. Then loving it even more after you've got it nicely dialed in with VTA and loading. Then from that point on there should be anywhere from a few weeks to a few months of one night after another being surprised at catching yourself enjoying aspects of music you never noticed before.
That's what it should be like. Unless you are prone to buyers remorse. Which tends to be more likely on impulse purchases. Which between the way you said zero about doing any research, or even that you were looking for a cartridge, and seemed to have bought based on price without even asking about terms, sounds like an impulse purchase to me.
Don't really know what you should do. What I would do is pay more attention and consider a little more carefully next time.
That's what it should be like. Unless you are prone to buyers remorse. Which tends to be more likely on impulse purchases. Which between the way you said zero about doing any research, or even that you were looking for a cartridge, and seemed to have bought based on price without even asking about terms, sounds like an impulse purchase to me.
Don't really know what you should do. What I would do is pay more attention and consider a little more carefully next time.