'Looking forward to a quick 4 days in Rome the 2nd week of November. I have a number of places flagged for lunch from the Rome Digest, but would really rather pick where to go on the day of, based on what sites we've decided to see that day. If we are looking at restos like Roscioli, and Nonna Betta, are we safe just walking in, or do we really need to make reservations? If it's the latter, can we call the morning of to reserve? Note, we there over a weekend, including Saturday and Sunday - not sure if that makes a difference.... Many Thanks for you advice!