You're really not going to find a better priced unit in Lincoln Park, this close to the lake in Chicago. It really is a great deal. Super safe neighbourhood, there's a nice little coffee shop (Boccadillo) just north on Clark, plus a grocery store opposite. You can't beat the location for transit either - Clark bus stops right outside, about 4 blocks to the lake, and maybe 20 min walk to the el.
Saying that, the place is filthy - and if we noticed how dirty it was, it must have been bad (we used to live in a car!). The stairs up are pretty steep and the corridor STINKS!
If you're not going to be hanging around the flat much - and let's be fair, you're not really going to be given how close you are to amazing things all over Chi, it might not bother you. But if you value cleanliness, you won't value your stay here.