Have been to Rome twice in January and February and really like it. (And going again this year). Was last there for all of February and most of March 2012, and with the exception of that freak snowstorm at the beginning of February, by the 2nd week of February it was in the 50s & 60s -- and sunshine for days on end. It's never that cold (coat weather and sometimes a scarf) great for long long walks. You can still sit outside at cafes/restaurants -- most have heaters -- and the crowds are much less than at other times of the year. Still there are lines, tho moderate, at the key sites, but nothing too bad. Have never been there during other times of the year so can't compare....but in my opinion you get to see the "real" Rome without so many others of "us" traipsing around.