My wife and I spent the night at the Hilton Rome Airport 2 nights ago. We chose it over the Hilton Garden due to a very early departure the following day and being that it is attached to the Terminals via a covered walkway - albeit a 10 min walk. The hotel was good in true Hilton style - nothing fancy but a comfortable bed and a great breakfast the next day. My only gripe was that the cheapest rate on offer was 299 euros which like most things in Rome is in my opinion, expensive.