This apartment is in a great location as the 1/2/3 are 7 min walk away and there is a station entrance for the B/C at the end of the block. The apartment is nice and clean with lots of natural sunlight. The bed is also quite comfortable and there is a monitor/TV with an HDMI cord you can use. The couches are also large and comfortable. The kitchen is very well stocked and even has a moka pot and french press. Carlo is also super responsive to anything that needs to be fixed. Surprisingly the water pressure in the shower is very good.
There are four things I'd like to point out about this apartment.
The first thing I would point out is although the street is generally quiet, because both the bedroom and living room face a one way/one lane street, every couple of days the street will get backed up and there will be a lot of cars honking at the same time for minutes. This was very unpleasant especially when it happened very early in the morning. Other than ear plugs there isn't much you can do about it. Next time I would probably opt for one of the apartments facing the back of the building.
The second thing is the apartment is a walk up with three very long sets of stairs you need to go up (20+ steps each) so if you have heavy luggage or have issues with lots of stairs I wouldn't recommend this place.
The third thing is the wifi here is not very fast. I wasn't able to stream things on my phone in the bedroom so I used cellular data for most of my stay. In the living room I was able to do work and participate in conference calls so didn't have issues there. There does seem to be a coax cable you can plug into a modem to have your own internet for your 30 days+ stay. This is assuming you pay for your own wifi. The wifi provided is from a modem/router not in the apartment so the signal is not very strong.
The fourth thing is that there is central heating for the whole building and most of the time it was too hot so I needed to keep the windows open. I visited in the fall so it wasn't too big of an issue. Carlo also was very accommodating and turned the thermostat down for the building. There does seem to be one window AC unit in the closet so I assume in the summer you can use the AC in one of the rooms.