A camera is only as good as a person behind it, you could have the most expensive and highest quality camera but if the person using it doesn't know how to use it any video will be bad.
That being said a GoPro is good if you don't like messing around with camera settings and just want to go out and film. You have the ability to narrow your field of view in the settings but it still is pretty wide and gives lens distortion which you can fix in post if you know how to. You could pick up a Hero 3 or 4 for fairly cheap 200, maybe. If you are actually getting into filming picking up a DSLR, like a t2i or t3i for 300 or 400 isn't a bad option.
To keep it short if you are just using it to film and have fun for yourself and friends get a GoPro 3 or 4. If your plan is to get into the video industry pay a bit more if possible and buy a DSLR or an older video camera.