You can have a great guitar, however if it is not tuned and set up correctly is will not do what you want to do. In fact, just the opposite is true. “Harters Music”'s knows about set-up of your instrument. They will expertly set it up correctly and it won't cost you an arm and a leg.
Cost for a typical set up is $20, plus tax. Under some circumstances, a little more. But what is really important is the peace of mind you will have knowing that you guitar, etc is "set-up" perfectly for you.