On an electric guitar, should the strings buzz and rattle when you strum? For example, open E... hit it with a pick or your thumb, and it rattles and buzzes. This is a cheap guitar. I'm guessing it was a waste of money. Also, notes waver, or seem to waver, pitching up or down. Anyone?

Is the action in need of adjustment? Or maybe the strings are super cheap-o? I'm a newbie to electric guitar. Maybe it's just me who's lame?