Hi y'all! Just got back from a six day trip to Rome and here's the tea! I decided to go even though it was a Jubilee year because the flights happened to be the cheapest and the directest of the locations I was looking at (Spain and Morocco were the others, I was traveling with my mom and she didn't seem to want anywhere in Northern Europe because it's March and cold and rainy up there and we didn't want to go anywhere further than Europe and NA I guess because we only had a week).
Main concerns
Crowds - wasn't really a problem if I'm honest. I'd never been to Rome before so I can't compare with previous years. There were a few streets around Piazza Venezia and in other tourist heavy areas that were crowded, and of course the major sites like the Vatican Museum, Trevi Fountain, and the main part of the Colosseum with the exhibits, but otherwise it wasn't a problem. I honestly thought the city did a great job preparing for crowds and lines in general were well-organized and swift. Note that I didn't go through regular lines for the Colosseum as I did a tour so I can't weigh in on that. Advance reservations for certain sites are a must if you want the good experience I had. Our Colosseum tour guide told us though that the crowds in March were more like what she expects for April/May/June, so high season Rome may still be overly crowded and difficult. I grew up in New York and the times I've been to the Met and the Museum of Natural History in recent years both have been more busy than anywhere I experienced in Rome except maybe the Vatican Museums and Colosseum which were on par.
The Pope dying - didn't happen. Happy for him and relieved for progressive Catholics. Our Colosseum tour guide told us a lot of people canceled their trips since the Pope canceled some of the Jubilee events for his health, so that may have also contributed to the manageable crowds.
Anti-American sentiment - Europeans can always be brusque and I didn't perceive any treatment out of the ordinary. I saw some girls flipping the bird to a t shirt with an American flag on it at a store which I thought was funny.
Trip Report
Day 1: My flight landed around 7:15 at FCO and the airport was a breeze (I didn't check luggage). Caveat that I do have EU citizenship, so I could go into a different line when leaving. I was the literally the only person going through customs check at that time. I was through the airport in 15 minutes. The train to Termini station was very smooth and easy but I wasn't prepared for how expensive it was (14 euros) but I paid way more to get home from Newark Airport once so whatever. The train was nearly empty at that hour but way too hot. Rolled into Termini around 8:15 and immediately hopped on the metro. You don't ever need to buy tickets by the way so don't panic if you see a sign at the bus stops saying to buy a ticket at a Tabacchio before boarding - I didn't take any public transit ever (except the Circumvesuviana on the way back from Pompeii - more later) that didn't have a card reader. I got off at Pyramide. Because so many places required advance reservation we had a very structured itinerary so I knew this might be my only chance to get out of the main tourist spots and check out "real" Rome. I was badly in need of caffeine so I walked down Via Ostiense until I got to a place called 77Caffe and stopped in for cappuccino. What a place! I wouldn't go out of your way but if you happen to be in the area I had a great experience here. No English and it seemed like they got a lot of regulars. I sat there for some time - not sure but at least 45 minutes and the place was regularly filling and emptying. Great for people watching. The pastries looked nice but I didn't have one. The young woman who helped me was so so nice. I had two cappuccinos. Also, maybe the prices on the board were the sit-down price, but they didn't upcharge me for taking the drink to the table. (see comments for more)