I'm someone who can look past the decor too, so that wouldn't put me off. Nor would the trainline - lived near once and absolutely loved it.
If I were looking for a 2-3 bed house, it would be fine, but as PP said, it's not four bedrooms if one is downstairs. That's essentially a kids' room for playing in or games/homework depending on how old they are.
It's one bathroom upstairs, isn't it? That wouldn't necessarily put me off, but two would be better. Don't know about prices, but if it's priced as a four bedroomed house, maybe that makes it too expensive?