https://newsroom.hilton.com/corporate/news/hilton-introduces-confirmed-connecting-roomsPersonally I really like this. I usually try to book a suite when travelling with my kids as I'm wary of relying on connecting rooms when they can only be confirmed close to check-in. Hopefully other chains will follow.I don't see this option online yet even though the article seems to say it's live already. Haven't tried the app.ETA: More details here, though I still don't see it on a few test searches.