I think the giveaway word is "chain". In my experience (and I used to be married to a travel writer for a national broadsheet), "Luxury hotel chain" is almost always a contradiction in terms.

The Four Seasons chain may be an exception...The George V in Paris is lovely. And you get the sort of attentive service that you expect from a luxury hotel. When we stayed they and milk and cookies at bedtime for kids, and gave them teddies...

For me, luxury hotels are the opposite of chains: the rooms are styled well, and at best individually; the amenities they provide (from facilities to food to the giveaways in the bathroom) are first rate; but I think it's the staff (and often the ratio of staff to guests) that often makes the biggest difference.