Three things I wish I'd known in advance:
1) this unit is partially underground (approx 4ft) and the windows open to a centre courtyard
2) all linens and towels are washed in a central laundry using a heavily scented detergent, and there are no other options (if you have a scent allergy, this is not a good choice for you)
3) it is noted that you are required to complete a registration form, but what is not noted is that they require a photo of your passport, or for you to accommodate a visit the following morning for them to come by and view your passport.
Aside from the above, the kitchen chairs have upholstery nails sticking out which scratch your legs, so be careful. And the check-in process is clear but overly complicated.
Otherwise, the apartment is in a great location, you get a good value for your money, and Alex was extremely prompt with responses.