I can vouch for the Four Seasons at Las Colinas - though one couple I "ran into" a few years ago won't. The room card I was given (nice upgrade! I was told) contained a pre-existing guest couple, engaged in what couples often do - ah, er, coupling.

The desk was very solicitous and gave me an even better, uninhabited, upgrade, plus a voucher for a future free stay. But I suspect for the poor couple caught "in flagranto delicious," the magic of the moment was broken by an interloper.

I thought, naively, that this couldn't happen with computer-managed room assignments, but...

(Yeah, it's OT because we are talking about AA and DFW here - but I don't know if they have apple juice or not, or what is on the menu.)