Here are some of the thoughts that went through my head:
The story was predictable, the exposition was too exposition-y, how she planned on killing Sam was a big weird loop hole, and the starting goal of the series being “let’s find dad and that thing that killed mom” was smashed over my head like a vase.
Dean and Sam were very likable characters, and I got excited whenever they pulled out unconventional tools of the trade, such as the fake badges, faulty credit cards, and the trunk. They were bad-asses, but their bad-assery was not blown out of proportion. Dean’s classic metal tapes and old muscle car drove home a part of his character that would be too cheesy to convey in dialogue. The two actors had great chemistry as brothers, and in the end, that’s what you want to see in a pilot episode. How the characters bounce off of each other. If it weren’t so late, I’d watch more.