First (and lasting) imression:  Aria is the euro/clubby version of the other casinos.\n\nThe interior was not designed in traditional casino-form.  It looks much different than the other casinos on the strip in that it has much more a trendy/nightclub feel.  Even the Encore at the Wynn, a new hotel, still looks like an upscale casino, but Aria reminded me of a string of nightclubs and trendy bars with contemporary minimalist decorating.  The lighting is much darker than the other hotels, but the foot traffic in the casino was heavy and people were at the tables.  \n\nThe spa is gorgeous, but again, there weren't people utilizing the facility there, rather just walking through viewing- it is very well-decorated like some yoga retreat center.  The restaurants looked uninviting to families (dark, trendy, and each with a unique colored-glow) but probably appealing to a younger, single crowd.  Busiest areas in the hotel were the casino, the under 18-arcade, and the food-court-style dining options, as would be expected given the time of year and economic climate.