Check in across from the Central Station was easy, and they were accommodating of my delayed schedule. I wish, however, that I had known that after checking in, I would be required to walk nearly a mile (with all of my luggage) to reach the flat.
The building itself was fine (though the elevator is ridiculously tiny, so if you have more than 2 bags, prepare to make multiple trips), but the apartment was not. First, I booked this flat specifically because it listed having air conditioning. It's summer in Italy with temperatures between 85 and 90 degrees F. I'm used to A/C so I specifically looked for flats with it. While this flat did have one, it didn't work. The A/C was a little unit in the kitchen that couldn't have cooled down a cardboard box. It was 86 degrees in the apt. Even if it had done anything to cool the flat down, it didn't put out enough air to cool the adjoining bedroom, so anyone sleeping in there would have roasted.
But as I was trying to wait to see if it would cool down, I noticed a tumbleweed of bodyhair in the kitchen and the floor looked like it hadn't been cleaned in weeks. Seeing that, I could only imagine how the rest of the flat would be, so I immediately booked a hotel, called a taxi, and left.
As for the location, I can't talk about that much because I was in the flat for less than an hour, but based on where I went to from where I was, it's not very near the Duomo or the major shopping centers most come to Milan for.
If the place is clean and you're not visiting during the summer, the place might not be so bad, but as it stands, I definitely couldn't recommend it.