Just back after a wonderful few days. We thoroughly enjoyed ourselves, although I admit to being flabbergasted by how much busier the city was since my last visit around 10 years ago. With such a plethora of tourists and restaurants, I was pleased that we had researched and booked meals in advance.
Rather ironically, in light of recent posts by others, our most enjoyable meal was at Trattoria Monti. Service (from the two brothers and another younger guy) was extremely friendly, and the food was fantastic; we couldn't fault a thing!
The food was also fantastic at Antico Arco, but the experience marred by some awkwardness when we arrived - we were led to the upstairs room which was completely empty and soul-less. We asked if we could have a table by everyone else downstairs. There was a bit of a performance involving a phone call to check, and eventually we were led downstairs again. From then on, service was good, though not particularly warm. But it was probably another 45 minutes before any other party went up to that floor, so had we stayed at our designated table we would have been eating on our own for the majority of our meal.
Another night, we walked to Travestere for Le Mani in Pasta. Another enjoyable evening, notable for the fascinating walk through the Ghetto and across the Tiber to get there, and, once in the restaurant, the warm welcome and the outstanding pasta. (We had specifially booked a table upstairs and were very glad we had.) The rest of the food was decent but if returning there I would have nothing but pasta - which is the point of the place after all!
I also enjoyed the market at Campo di Fiori for the photography opportunities - and for the pizza by the slice from the bakery in the corner of the square.
So thank you, Chowhounders, for all your help, which added considerably to our Rome experience!