Housing.. Housing..

So I went to another apartment viewing today, and the place was quite small. It has a fold-out bed that looks like a closet, and a separate kitchen and bathroom. Compared to the other apartment, this is much closer to work (I can even see where I used to live when I was on internship at the company). On the other hand, it is far to walk from work, but too close for transit. For comparison, it would take about half an hour to walk and five minutes on light rail (plus transfer time, because I need to switch trains). It is also a slight bit more expensive..

Why does choosing an apartment involve so much logically reasoning? Should I just go with my heart and make an impulsive decision?