This residence advertises itself as the equivalent of a four star hotel, but that couldn't be further from the truth. My apartment had none of the amenities promised/advertised on the website:
no air conditioning (a particular hardship considering the wretched 95 degree heatwave this summer);
no working phone line;
no working television (one channel of fuzzy "snow");
no extra set of keys (I was sharing one set of keys with another student whose schedule was opposite mine... what a mess! Not to mention that our single set of keys didn't open the main gate to the residence, so we had to beg people to let us in at night... And when we begged for a spare set, we were told to go to the nearest hardware store to make our own copies);
no laundry service (this was a special service purportedly organized by our university with Tassoni, but when we inquired about it, we were given puzzled looks and told to go to a laundrymat);
no working intercom to buzz in one's roommate or visitors (a particular problem when you have no working phone line either);
no fans (you have to go to the desk and beg for one, and the one we got was broken);
irregular staff hours (during office hours, the staff was rarely in the office and acted put upon when we asked for anything);
no facilities tour upon arrival (we were here a month and only on the LAST DAY learned that there was in fact a breakfast room somewhere on premises... nice to know after weeks of spending money on breakfast!!);
and an internet connection that was sporadic at best (which made it impossible to get any work done from the apartment).
The staff were unhelpful, the room was dirty, we rarely received fresh towels and linens, and we had to resort to purchasing our own toilet paper because the maids refused to leave us any!
The neighborhood in which the residence is situated has nothing to offer, and is a fifteen minute walk from the nearest subway station. It's not even in the city center proper, and is not located on any city center maps. It is not, in other words, "just minutes" from Vatican City-- more like a 20 minute hardcore hike.
My roommate and I were here a month, for which we paid the obscene equivalent of nearly 3000 USD for a crappy apartment masquerading as a four-star hotel. Keep in mind that we could have easily booked a room elsewhere for quarter of this price. I know, because I lived in Rome for several years and am quite familiar with housing and rental costs here. For years, for example, I rented a room in an apartment in the real city center of Rome for $350/month. So imagine my irritation at spending many times that for no amenities, no location, no service, and so on.
Had we known that the amenities advertised on the website were not in fact available here, we'd have booked elsewhere, but we didn't learn anything about the true lack of amenities until the night before we arrived in Rome, when it was too late to book another accommodation.
One important side note: if you're a young attractive female, beware of Villa Tassoni. One of the desk clerks kept asking me out and when I gave him a firm "no thank you", he was surly with me for the rest of my stay and wouldn't help me with anything.
Residence Villa Tassoni is not the worst place I've ever stayed in Rome, but it definitely does not live up to its "four star hotel" purported reputation.