I decided to take advantage of Delta's recent ~$700 East Coast to Singapore deal, and since I've already been to Singapore a few times, I'm cashing in a few SkyPesos to take the non-stop from Singapore to Hanoi. The layover between the two sets of flights is over 12 hours but not over 15 hours; and the flights to VN depart from Terminal 1 while flights to the U.S. depart from Terminal 3. So questions I have about the Ambassador Transit Hotel would be this: 1) can I collect my checked luggage between those sets of flights and go to the transit hotels without the hassle of clearing customs? 2) how do I get between terminal transit areas without having to clear customs? 3) do these hotels have WiFi availability in the rooms and how much do they cost? 4) The cost for a stay of about 12 hours at the transit hotels is about $140 USD (or 175 SGD), but if I see a deal for the Crowne Plaza attached to Terminal 3 (which is where I depart from for the return to the U.S.), should I go for that instead? Right now the price I'm seeing at the Crowne Plaza is $265 USD. Thanks for any advice you can come up with!