A warning: Rome Armony Suites is almost always booked up months in advance, so if you’re interested, book early. Why so popular? The answer starts with service; owner Luca is a charming, sensitive host, especially helpful with first-time visitors to Rome. Rooms are big, clean, and modern, with minimalist decor, tea and coffee facilities, and a fridge in each unit. Final, major perk: free loaner smartphones loaded with maps and tourist info, to help guests get the most out of their visit; calls to the U.S. and Canada included, too.