I think the only thing that discredits the album are two things. And they are called She's a Mystery and I got the girl.
Like you said, two songs that are quite enjoyable on their own but don't fit with this album, and having them next to each other really brings the album down.
Save the world i can deal with, mystery train I've always considered a good catchy song, nothing more nothing less.
The rest of the album I love.