Definately not an expert, but I had a recent experience. I bought my husband Cartier l'heure mysterieuse for Father's Day and it also arrived late and very hot. It did not smell very good and nothing like the sample my SA sent. However the next day when the bottle had "settled" and cooled down it was fine and smelled just like the sample, which is fabulous.
I do think I'm going to order in the cooler months in the future though.
Thank you! Glad your lovely perfume didn't have problems. Great advice to not test them right away, while they're still hot. Thanks!